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Full vulnerability report · 2026
CVE-2026-4438High confidence

gethostbyaddr and gethostbyaddr_r return invalid DNS hostnames

The GNU C Library · glibc

5.4MediumCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 6 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • A structured source references public exploit or proof-of-concept material.
  • EPSS is 0.32% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs The GNU C Library glibc and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 6 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

5 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourceglibcVendor fix publishedDebian records a fixed source-package version for this release.2.41-12+deb13u3Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourceglibcVendor fix publishedDebian records a fixed source-package version for this release.2.36-9+deb12u14Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourceglibcVendor fix publishedDebian records a fixed source-package version for this release.2.42-14Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourceglibcVendor fix publishedDebian records a fixed source-package version for this release.2.42-14Debian Security Tracker ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archiveglibcVendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.2.39-0ubuntu8.8Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

3 current
CVE-2026-4438 · CSAF 2.0 · revision 33 · interimSUSE Product Security TeamCVE-2026-4438
24 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • glibc-livepatches as component of SUSE Linux Enterprise Live Patching 15 SP4
  • glibc-livepatches as component of SUSE Linux Enterprise Live Patching 15 SP5
  • glibc-livepatches as component of SUSE Linux Enterprise Live Patching 15 SP7
  • glibc-livepatches as component of SUSE Linux Enterprise Server 16.0
  • glibc-livepatches as component of SUSE Linux Enterprise Server for SAP applications 16.0
  • glibc-livepatches as component of SUSE Linux Micro 6.1
  • glibc-livepatches as component of SUSE Linux Micro 6.2
  • SUSE Linux Micro Extras 6.2:glibc-gconv-modules-extra
  • SLES 15 SP1 CHOST Images for Amazon EC2
  • SLES 15 SP2 CHOST Images for Amazon EC2
  • SLES 15 SP3 CHOST Images for Amazon EC2
  • SLES 15 SP4 CHOST Images for Amazon EC2
Summary
Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C library version 2.34 to version 2.43 could result in an invalid DNS hostname being returned to the caller in violation of the DNS specification.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2026-4438 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityglibc: glibc: Invalid DNS hostname returned via gethostbyaddr functions
238 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • compat-glibc-headers as a component of Red Hat Enterprise Linux 6
  • compat-glibc.src as a component of Red Hat Enterprise Linux 6
  • glibc as a component of Red Hat Enterprise Linux 6
  • glibc-common as a component of Red Hat Enterprise Linux 6
  • glibc-devel as a component of Red Hat Enterprise Linux 6
  • glibc-headers as a component of Red Hat Enterprise Linux 6
  • glibc-static as a component of Red Hat Enterprise Linux 6
  • glibc-utils as a component of Red Hat Enterprise Linux 6
  • glibc.src as a component of Red Hat Enterprise Linux 6
  • nscd as a component of Red Hat Enterprise Linux 6
  • compat-glibc as a component of Red Hat Enterprise Linux 7
  • compat-glibc-headers as a component of Red Hat Enterprise Linux 7
Summary
A flaw was found in the GNU C library (glibc). When applications use the `gethostbyaddr` or `gethostbyaddr_r` functions with a `nsswitch.conf` configuration that specifies glibc's DNS backend, the library may return an invalid DNS hostname. This violates the DNS specification and could lead to applications receiving incorrect hostname information, potentially impacting network operations or security decisions.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
SSA-082556 · CSAF 2.0 · revision 7 · interimSiemens ProductCERTSSA-082556: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.5
5 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.5 < V3.1.6
  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.5 < V3.1.6
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.5 < V3.1.6
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= V3.1.5 < V3.1.6
  • SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= V3.1.5 < V3.1.6
Summary
Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C library version 2.34 to version 2.43 could result in an invalid DNS hostname being returned to the caller in violation of the DNS specification.
Remediation
Update to V3.1.6 or later version
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-13798

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 6 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C library version 2.34 to version 2.43 could result in an invalid DNS hostname being returned to the caller in violation of the DNS specification.

What

Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C library version 2.34 to version 2.43 could result in an invalid DNS hostname being returned to the caller in violation of the DNS specification.

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C library version 2.34 to version 2.43 could result in an invalid DNS hostname being returned to the caller in violation of the DNS specification.

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
an adjacent network → Improper Input Validation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Adjacent
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-20 ↗

CWE-20: Improper Input Validation. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CLowConfidentiality impact: A successful attack can cause a limited loss.ILowIntegrity impact: A successful attack can cause a limited loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
UnauthenticatedCWE-20Public exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2026-3623IBM DataPower Gateway: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM DataPower Gateway ausnutzen, um beliebigen Programmcode auszuführen, erweiterte Berechtigungen zu erlangen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen, einen Denial-of-Service-Zustand auszulösen oder Cross-Site-Scripting-Angriffe durchzuführen.

Official advisory ↗
BSI · German · WID-SEC-2026-3038Meinberg LANTIME: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Meinberg LANTIME ausnutzen, um beliebigen Code auszuführen, Berechtigungen zu erweitern, Sicherheitsmaßnahmen zu umgehen, sensible Informationen offenzulegen, Daten zu manipulieren oder Denial-of-Service-Zustände herbeizuführen.

Official advisory ↗
BSI · German · WID-SEC-2026-0817GNU libc: Mehrere Schwachstellen ermöglichen Manipulation von DNS Antworten

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in GNU libc ausnutzen, um DNS Antworten zu manipulieren.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260325Security Bulletin 25 Mar 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 25 Mar 2026, published on 25 March 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0376Multiples vulnérabilités dans les produits Microsoft

Bulletin de sécurité Microsoft CVE-2026-23246 du 19 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23253 du 20 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23268 du 20 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23269 du 20 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23271 du 21 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23274 du 21 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23277 du 21 mars 2026 Bulletin de sécurité Microsoft CVE-2026-30922 du 21 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23100 du 22 mars 2026 Bulletin de sécurité Microsoft CVE-2026-4437 du 22 mars 2026 Bulletin de sécurité Microsoft CVE-2026-4438 du 22 mars 2026 Bulletin de sécurité Microsoft CVE-2025-69720 du 25 mars 2026 Bulletin de sécurité Microsoft CVE-2026-2369 du 25 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23279 du 26 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23281 du 26 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23284 du 26 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23285 du 26 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23286 du 26 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23289 du 26 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23290 du 26 mars 2026 Bulletin de sécurité Microsoft CVE-2026-23291 du 26 mars 2026 Bulletin de sé

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-010324GNU ProjectのGNU C Libraryにおける複数の脆弱性

GNU Cライブラリのバージョン2.34から2.43において、nsswitch.confでライブラリのDNSバックエンドが指定されている場合に、gethostbyaddrまたはgethostbyaddr_rを呼び出すと、DNS仕様に違反した無効なDNSホスト名が呼び出し元に返される可能性があります。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 20 Mar 2026 · Last source change 14 Jul 2026, 12:45 UTC · CWE-20 · Improper Input Validation

CVE recordCVE.org · 5.2
CVSS sourceCISA ADP
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-13798
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    compat-glibc-headers as a component of Red Hat Enterprise Linux 6; compat-glibc.src as a component of Red Hat Enterprise Linux 6; glibc as a component of Red Hat Enterprise Linux 6; glibc-common as a component of Red Hat Enterprise Linux 6; glibc-devel as a component of Red Hat Enterprise Linux 6; glibc-headers as a component of Red Hat Enterprise Linux 6; glibc-static as a component of Red Hat Enterprise Linux 6; glibc-utils as a component of Red Hat Enterprise Linux 6; glibc.src as a component of Red Hat Enterprise Linux 6; nscd as a component of Red Hat Enterprise Linux 6; compat-glibc as a component of Red Hat Enterprise Linux 7; compat-glibc-headers as a component of Red Hat Enterprise Linux 7; compat-glibc.src as a component of Red Hat Enterprise Linux 7; glibc as a component of Red Hat Enterprise Linux 7; glibc-common as a component of Red Hat Enterprise Linux 7; glibc-devel as a component of Red Hat Enterprise Linux 7; glibc-headers as a component of Red Hat Enterprise Linux 7; glibc-static as a component of Red Hat Enterprise Linux 7; glibc-utils as a component of Red Hat Enterprise Linux 7; glibc.src as a component of Red Hat Enterprise Linux 7; nscd as a component of Red Hat Enterprise Linux 7; compat-libpthread-nonshared as a component of Red Hat Enterprise Linux 8; glibc as a component of Red Hat Enterprise Linux 8; glibc-all-langpacks as a component of Red Hat Enterprise Linux 8; glibc-benchtests as a component of Red Hat Enterprise Linux 8; glibc-common as a component of Red Hat Enterprise Linux 8; glibc-devel as a component of Red Hat Enterprise Linux 8; glibc-doc as a component of Red Hat Enterprise Linux 8; glibc-gconv-extra as a component of Red Hat Enterprise Linux 8; glibc-headers as a component of Red Hat Enterprise Linux 8; and 208 more · Fixed: glibc-benchtests-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-doc-0:2.39-121.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-utils-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 2001 more
    After
    compat-glibc-headers as a component of Red Hat Enterprise Linux 6; compat-glibc.src as a component of Red Hat Enterprise Linux 6; glibc as a component of Red Hat Enterprise Linux 6; glibc-common as a component of Red Hat Enterprise Linux 6; glibc-devel as a component of Red Hat Enterprise Linux 6; glibc-headers as a component of Red Hat Enterprise Linux 6; glibc-static as a component of Red Hat Enterprise Linux 6; glibc-utils as a component of Red Hat Enterprise Linux 6; glibc.src as a component of Red Hat Enterprise Linux 6; nscd as a component of Red Hat Enterprise Linux 6; compat-glibc as a component of Red Hat Enterprise Linux 7; compat-glibc-headers as a component of Red Hat Enterprise Linux 7; compat-glibc.src as a component of Red Hat Enterprise Linux 7; glibc as a component of Red Hat Enterprise Linux 7; glibc-common as a component of Red Hat Enterprise Linux 7; glibc-devel as a component of Red Hat Enterprise Linux 7; glibc-headers as a component of Red Hat Enterprise Linux 7; glibc-static as a component of Red Hat Enterprise Linux 7; glibc-utils as a component of Red Hat Enterprise Linux 7; glibc.src as a component of Red Hat Enterprise Linux 7; nscd as a component of Red Hat Enterprise Linux 7; compat-libpthread-nonshared as a component of Red Hat Enterprise Linux 8; glibc as a component of Red Hat Enterprise Linux 8; glibc-all-langpacks as a component of Red Hat Enterprise Linux 8; glibc-benchtests as a component of Red Hat Enterprise Linux 8; glibc-common as a component of Red Hat Enterprise Linux 8; glibc-devel as a component of Red Hat Enterprise Linux 8; glibc-doc as a component of Red Hat Enterprise Linux 8; glibc-gconv-extra as a component of Red Hat Enterprise Linux 8; glibc-headers as a component of Red Hat Enterprise Linux 8; and 208 more · Fixed: glibc-benchtests-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-doc-0:2.39-121.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-utils-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 2005 more
    Red Hat Product Security ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    2.34 ≤ 2.43 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    2.34 ≤ 2.43 · Fixed: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
    Red Hat Product Security ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    compat-glibc-headers as a component of Red Hat Enterprise Linux 6; compat-glibc.src as a component of Red Hat Enterprise Linux 6; glibc as a component of Red Hat Enterprise Linux 6; glibc-common as a component of Red Hat Enterprise Linux 6; glibc-devel as a component of Red Hat Enterprise Linux 6; glibc-headers as a component of Red Hat Enterprise Linux 6; glibc-static as a component of Red Hat Enterprise Linux 6; glibc-utils as a component of Red Hat Enterprise Linux 6; glibc.src as a component of Red Hat Enterprise Linux 6; nscd as a component of Red Hat Enterprise Linux 6; compat-glibc as a component of Red Hat Enterprise Linux 7; compat-glibc-headers as a component of Red Hat Enterprise Linux 7; compat-glibc.src as a component of Red Hat Enterprise Linux 7; glibc as a component of Red Hat Enterprise Linux 7; glibc-common as a component of Red Hat Enterprise Linux 7; glibc-devel as a component of Red Hat Enterprise Linux 7; glibc-headers as a component of Red Hat Enterprise Linux 7; glibc-static as a component of Red Hat Enterprise Linux 7; glibc-utils as a component of Red Hat Enterprise Linux 7; glibc.src as a component of Red Hat Enterprise Linux 7; nscd as a component of Red Hat Enterprise Linux 7; compat-libpthread-nonshared as a component of Red Hat Enterprise Linux 8; glibc as a component of Red Hat Enterprise Linux 8; glibc-all-langpacks as a component of Red Hat Enterprise Linux 8; glibc-benchtests as a component of Red Hat Enterprise Linux 8; glibc-common as a component of Red Hat Enterprise Linux 8; glibc-devel as a component of Red Hat Enterprise Linux 8; glibc-doc as a component of Red Hat Enterprise Linux 8; glibc-gconv-extra as a component of Red Hat Enterprise Linux 8; glibc-headers as a component of Red Hat Enterprise Linux 8; and 207 more · Fixed: glibc-benchtests-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-doc-0:2.39-121.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-utils-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 2001 more
    After
    compat-glibc-headers as a component of Red Hat Enterprise Linux 6; compat-glibc.src as a component of Red Hat Enterprise Linux 6; glibc as a component of Red Hat Enterprise Linux 6; glibc-common as a component of Red Hat Enterprise Linux 6; glibc-devel as a component of Red Hat Enterprise Linux 6; glibc-headers as a component of Red Hat Enterprise Linux 6; glibc-static as a component of Red Hat Enterprise Linux 6; glibc-utils as a component of Red Hat Enterprise Linux 6; glibc.src as a component of Red Hat Enterprise Linux 6; nscd as a component of Red Hat Enterprise Linux 6; compat-glibc as a component of Red Hat Enterprise Linux 7; compat-glibc-headers as a component of Red Hat Enterprise Linux 7; compat-glibc.src as a component of Red Hat Enterprise Linux 7; glibc as a component of Red Hat Enterprise Linux 7; glibc-common as a component of Red Hat Enterprise Linux 7; glibc-devel as a component of Red Hat Enterprise Linux 7; glibc-headers as a component of Red Hat Enterprise Linux 7; glibc-static as a component of Red Hat Enterprise Linux 7; glibc-utils as a component of Red Hat Enterprise Linux 7; glibc.src as a component of Red Hat Enterprise Linux 7; nscd as a component of Red Hat Enterprise Linux 7; compat-libpthread-nonshared as a component of Red Hat Enterprise Linux 8; glibc as a component of Red Hat Enterprise Linux 8; glibc-all-langpacks as a component of Red Hat Enterprise Linux 8; glibc-benchtests as a component of Red Hat Enterprise Linux 8; glibc-common as a component of Red Hat Enterprise Linux 8; glibc-devel as a component of Red Hat Enterprise Linux 8; glibc-doc as a component of Red Hat Enterprise Linux 8; glibc-gconv-extra as a component of Red Hat Enterprise Linux 8; glibc-headers as a component of Red Hat Enterprise Linux 8; and 208 more · Fixed: glibc-benchtests-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-doc-0:2.39-121.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-utils-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 2001 more
    Red Hat Product Security ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    compat-glibc-headers as a component of Red Hat Enterprise Linux 6; compat-glibc.src as a component of Red Hat Enterprise Linux 6; glibc as a component of Red Hat Enterprise Linux 6; glibc-common as a component of Red Hat Enterprise Linux 6; glibc-devel as a component of Red Hat Enterprise Linux 6; glibc-headers as a component of Red Hat Enterprise Linux 6; glibc-static as a component of Red Hat Enterprise Linux 6; glibc-utils as a component of Red Hat Enterprise Linux 6; glibc.src as a component of Red Hat Enterprise Linux 6; nscd as a component of Red Hat Enterprise Linux 6; compat-glibc as a component of Red Hat Enterprise Linux 7; compat-glibc-headers as a component of Red Hat Enterprise Linux 7; compat-glibc.src as a component of Red Hat Enterprise Linux 7; glibc as a component of Red Hat Enterprise Linux 7; glibc-common as a component of Red Hat Enterprise Linux 7; glibc-devel as a component of Red Hat Enterprise Linux 7; glibc-headers as a component of Red Hat Enterprise Linux 7; glibc-static as a component of Red Hat Enterprise Linux 7; glibc-utils as a component of Red Hat Enterprise Linux 7; glibc.src as a component of Red Hat Enterprise Linux 7; nscd as a component of Red Hat Enterprise Linux 7; compat-libpthread-nonshared as a component of Red Hat Enterprise Linux 8; glibc as a component of Red Hat Enterprise Linux 8; glibc-all-langpacks as a component of Red Hat Enterprise Linux 8; glibc-benchtests as a component of Red Hat Enterprise Linux 8; glibc-common as a component of Red Hat Enterprise Linux 8; glibc-devel as a component of Red Hat Enterprise Linux 8; glibc-doc as a component of Red Hat Enterprise Linux 8; glibc-gconv-extra as a component of Red Hat Enterprise Linux 8; glibc-headers as a component of Red Hat Enterprise Linux 8; and 207 more · Fixed: glibc-benchtests-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-doc-0:2.39-121.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-utils-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 1998 more
    After
    compat-glibc-headers as a component of Red Hat Enterprise Linux 6; compat-glibc.src as a component of Red Hat Enterprise Linux 6; glibc as a component of Red Hat Enterprise Linux 6; glibc-common as a component of Red Hat Enterprise Linux 6; glibc-devel as a component of Red Hat Enterprise Linux 6; glibc-headers as a component of Red Hat Enterprise Linux 6; glibc-static as a component of Red Hat Enterprise Linux 6; glibc-utils as a component of Red Hat Enterprise Linux 6; glibc.src as a component of Red Hat Enterprise Linux 6; nscd as a component of Red Hat Enterprise Linux 6; compat-glibc as a component of Red Hat Enterprise Linux 7; compat-glibc-headers as a component of Red Hat Enterprise Linux 7; compat-glibc.src as a component of Red Hat Enterprise Linux 7; glibc as a component of Red Hat Enterprise Linux 7; glibc-common as a component of Red Hat Enterprise Linux 7; glibc-devel as a component of Red Hat Enterprise Linux 7; glibc-headers as a component of Red Hat Enterprise Linux 7; glibc-static as a component of Red Hat Enterprise Linux 7; glibc-utils as a component of Red Hat Enterprise Linux 7; glibc.src as a component of Red Hat Enterprise Linux 7; nscd as a component of Red Hat Enterprise Linux 7; compat-libpthread-nonshared as a component of Red Hat Enterprise Linux 8; glibc as a component of Red Hat Enterprise Linux 8; glibc-all-langpacks as a component of Red Hat Enterprise Linux 8; glibc-benchtests as a component of Red Hat Enterprise Linux 8; glibc-common as a component of Red Hat Enterprise Linux 8; glibc-devel as a component of Red Hat Enterprise Linux 8; glibc-doc as a component of Red Hat Enterprise Linux 8; glibc-gconv-extra as a component of Red Hat Enterprise Linux 8; glibc-headers as a component of Red Hat Enterprise Linux 8; and 207 more · Fixed: glibc-benchtests-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-benchtests-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-common-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-debugsource-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-devel-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-doc-0:2.39-121.el10_2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-gconv-extra-debuginfo-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-locale-source-0:2.39-121.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10); glibc-utils-0:2.39-121.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); and 2001 more
    Red Hat Product Security ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
Fixed release recorded from official guidance
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2026-13798↗Vendor CSAF · SUSE Product Security Team↗Red Hat Product Security security advisory↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-4438 · cve.blacktree.nl