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Full vulnerability report · 2026
CVE-2026-13595High confidence

Util-linux: util-linux: heap use-after-free in libblkid nested partition probing

Red Hat · Red Hat Hardened Images

Official source article: Red Hat RHSA-2026:26573 ↗. Check the applicable product and release in the original source.

6.8MediumCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 1 structured product or package state 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.
  • EPSS is 0.17% 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.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Red Hat Red Hat Hardened Images 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 1 structured product or package state 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
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 1 affected package state shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

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 · sourceutil-linuxVendor fix publishedDebian records a fixed source-package version for this release.2.41.5-0+deb13u1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourceutil-linuxAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourceutil-linuxVendor fix publishedDebian records a fixed source-package version for this release.2.42.2-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourceutil-linuxVendor fix publishedDebian records a fixed source-package version for this release.2.42.2-1Debian Security Tracker ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archiveutil-linuxVendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.2.39.3-9ubuntu6.6Canonical 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.

2 current
CVE-2026-13595 · CSAF 2.0 · revision 14 · interimSUSE Product Security TeamCVE-2026-13595
259 known affected

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

  • libblkid1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • libblkid1-32bit as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • libfdisk1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • libmount1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • libmount1-32bit as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • libsmartcols1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • libuuid1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • libuuid1-32bit as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • util-linux as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • util-linux-lang as component of SUSE Linux Enterprise High Performance Computing 12 SP4
  • libblkid-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • libblkid-devel-static as component of SUSE Linux Enterprise High Performance Computing 15 SP1
Summary
A flaw was found in the libblkid library of util-linux. During nested partition probing, the BSD, Minix, Solaris x86, and UnixWare partition probers cache a raw pointer to a parent partition entry in a dynamically allocated array. When subsequent partition additions cause the array to be reallocated, this pointer becomes stale, leading to a heap use-after-free read. An attacker who can present a crafted block device image (for example, via USB insertion or a loop-mounted disk image) can trigger this flaw without user interaction, as libblkid is invoked automatically by udev/udisks as root on block-device hot-plug events. This could lead to limited information disclosure or denial of service.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2026-13595 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityutil-linux: util-linux: heap use-after-free in libblkid nested partition probing
57 known affected

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

  • libblkid as a component of Red Hat Enterprise Linux 10
  • libblkid-devel as a component of Red Hat Enterprise Linux 10
  • libfdisk as a component of Red Hat Enterprise Linux 10
  • libfdisk-devel as a component of Red Hat Enterprise Linux 10
  • libmount as a component of Red Hat Enterprise Linux 10
  • libmount-devel as a component of Red Hat Enterprise Linux 10
  • libsmartcols as a component of Red Hat Enterprise Linux 10
  • libsmartcols-devel as a component of Red Hat Enterprise Linux 10
  • libuuid as a component of Red Hat Enterprise Linux 10
  • libuuid-devel as a component of Red Hat Enterprise Linux 10
  • python3-libmount as a component of Red Hat Enterprise Linux 10
  • util-linux as a component of Red Hat Enterprise Linux 10
Summary
A flaw was found in the libblkid library of util-linux. During nested partition probing, the BSD, Minix, Solaris x86, and UnixWare partition probers cache a raw pointer to a parent partition entry in a dynamically allocated array. When subsequent partition additions cause the array to be reallocated, this pointer becomes stale, leading to a heap use-after-free read. An attacker who can present a crafted block device image (for example, via USB insertion or a loop-mounted disk image) can trigger this flaw without user interaction, as libblkid is invoked automatically by udev/udisks as root on block-device hot-plug events. This could lead to limited information disclosure or denial of service.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/
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-2026-40053

No EUVD known-exploited evidence

A flaw was found in the libblkid library of util-linux. During nested partition probing, the BSD, Minix, Solaris x86, and UnixWare partition probers cache a raw pointer to a parent partition entry in a dynamically allocated array. When subsequent partition additions cause the array to be reallocated, this pointer becomes stale, leading to a heap use-after-free read. An attacker who can present a crafted block device image (for example, via USB insertion or a loop-mounted disk image) can trigger this flaw without user interaction, as libblkid is invoked automatically by udev/udisks as root on block-device hot-plug events. This could lead to limited information disclosure or denial of service.

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
6.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

A flaw was found in the libblkid library of util-linux. During nested partition probing, the BSD, Minix, Solaris x86, and UnixWare partition probers cache a raw pointer to a parent partition entry in a dynamically allocated array. When subsequent partition additions cause the array to be reallocated, this pointer becomes stale, leading to a heap use-after-free read. An attacker who can present a crafted block device image (for example, via USB insertion or a loop-mounted disk image) can trigger this flaw without user interaction, as libblkid is invoked automatically by udev/udisks as root on block-device hot-plug events. This could lead to limited information disclosure or denial of service.

What

A flaw was found in the libblkid library of util-linux. During nested partition probing, the BSD, Minix, Solaris x86, and UnixWare partition probers cache a raw pointer to a parent partition entry in a dynamically allocated array. When subsequent partition additions cause the array to be reallocated, this pointer becomes stale, leading to a heap use-after-free read. An attacker who can present a crafted block device image (for example, via USB insertion or a loop-mounted disk image) can trigger this flaw without user interaction, as libblkid is invoked automatically by udev/udisks as root on block-device hot-plug events. This could lead to limited information disclosure or denial of service.

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through local access may attempt exploitation without authentication or user interaction. If successful, the issue may obtain information outside the intended access boundary.

What

A flaw was found in the libblkid library of util-linux. During nested partition probing, the BSD, Minix, Solaris x86, and UnixWare partition probers cache a raw pointer to a parent partition entry in a dynamically allocated array. When subsequent partition additions cause the array to be reallocated, this pointer becomes stale, leading to a heap use-after-free read. An attacker who can present a crafted block device image (for example, via USB insertion or a loop-mounted disk image) can trigger this flaw without user interaction, as libblkid is invoked automatically by udev/udisks as root on block-device hot-plug events. This could lead to limited information disclosure or denial of service.

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through local access may attempt exploitation without authentication or user interaction. If successful, the issue may obtain information outside the intended access boundary.

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.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → Use After Free → obtain information outside the intended access boundary
Attack surface
Local
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-416 ↗

CWE-416: Use After Free. The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory belongs to the code that operates on the new pointer.

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

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

AVLocalAttack vector: The attacker needs local access to the vulnerable system.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.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
UnauthenticatedDenial of serviceCWE-416
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-40053Official EUVD mapping

A flaw was found in the libblkid library of util-linux. During nested partition probing, the BSD, Minix, Solaris x86, and UnixWare partition probers cache a raw pointer to a parent partition entry in a dynamically allocated array. When subsequent partition additions cause the array to be reallocated, this pointer becomes stale, leading to a heap use-after-free read. An attacker who can present a crafted block device image (for example, via USB insertion or a loop-mounted disk image) can trigger this flaw without user interaction, as libblkid is invoked automatically by udev/udisks as root on block-device hot-plug events. This could lead to limited information disclosure or denial of service.

Official EUVD record ↗
BSI · German · WID-SEC-2026-2121util-linux: Schwachstelle ermöglicht Denial of Service und Offenlegung von Informationen

Ein lokaler Angreifer kann eine Schwachstelle in util-linux ausnutzen, um einen Denial of Service Angriff durchzuführen oder Informationen offenzulegen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260701Security Bulletin 1 July 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 1 July 2026, published on 1 July 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1249Multiples vulnérabilités dans les produits VMware

d?id=CVE-2026-11940 Référence CVE CVE-2026-11972 https://www.cve.org/CVERecord?id=CVE-2026-11972 Référence CVE CVE-2026-11979 https://www.cve.org/CVERecord?id=CVE-2026-11979 Référence CVE CVE-2026-12003 https://www.cve.org/CVERecord?id=CVE-2026-12003 Référence CVE CVE-2026-12087 https://www.cve.org/CVERecord?id=CVE-2026-12087 Référence CVE CVE-2026-12912 https://www.cve.org/CVERecord?id=CVE-2026-12912 Référence CVE CVE-2026-13221 https://www.cve.org/CVERecord?id=CVE-2026-13221 Référence CVE CVE-2026-13346 https://www.cve.org/CVERecord?id=CVE-2026-13346 Référence CVE CVE-2026-13506 https://www.cve.org/CVERecord?id=CVE-2026-13506 Référence CVE CVE-2026-13595 https://www.cve.org/CVERecord?id=CVE-2026-13595 Référence CVE CVE-2026-13757 https://www.cve.org/CVERecord?id=CVE-2026-13757 Référence CVE CVE-2026-14164 https://www.cve.org/CVERecord?id=CVE-2026-14164 Référence CVE CVE-2026-14257 https://www.cve.org/CVERecord?id=CVE-2026-14257 Référence CVE CVE-2026-14456 https://www.cve.org/CVERecord?id=CVE-2026-14456 Référence CVE CVE-2026-14457 https://www.cve.org/CVERecord?id=CVE-2026-14457 Référence CVE CVE-2026-15308 https://www.cve.org/CVERecord?id=CVE-2026-15308 Référence CVE CVE-2026-15310 https://www.cve.org/CVERecord?id=CVE-2026-15310 Référence CVE CVE-2026-15534 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1068Multiples vulnérabilités dans le noyau Linux de Debian

De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian. Elles permettent à un attaquant de provoquer une élévation de privilèges.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0841Multiples vulnérabilités dans Microsoft Azure Linux

De multiples vulnérabilités ont été découvertes dans Microsoft Azure Linux. Elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-022723kernel.org等の複数ベンダの製品における解放済みメモリの使用に関する脆弱性

util-linuxのlibblkidライブラリに脆弱性が見つかりました。ネストされたパーティションの検出中に、BSD、Minix、Solaris x86、およびUnixWareのパーティション検出モジュールは、動的に割り当てられた配列内に親パーティションエントリへの生ポインタをキャッシュします。後続のパーティション追加で配列が再割り当てされると、このポインタが古くなり、ヒープの解放後使用（heap use-after-free）による読み取りが発生します。攻撃者は、細工されたブロックデバイスイメージ（例えば、USBの挿入やループマウントされたディスクイメージを経由して）を用いて、この脆弱性をユーザ操作なしに引き起こすことができます。これは、libblkidがudevやudisksによってブロックデバイスのホットプラグイベント時に自動的にroot権限で呼び出されるためです。これにより、限定的な情報漏洩やサービス拒否（DoS）を引き起こす可能性があります。

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
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 29 Jun 2026 · Last source change 31 Aug 2026, 17:18 UTC · CWE-416 · Use After Free

CVE recordCVE.org · 5.2
CVSS sourceCNA
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-2026-40053
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceCNA
NVD statusNVD enriched

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
    libblkid1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libblkid1-32bit as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libfdisk1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libmount1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libmount1-32bit as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libsmartcols1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libuuid1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libuuid1-32bit as component of SUSE Linux Enterprise High Performance Computing 12 SP4; util-linux as component of SUSE Linux Enterprise High Performance Computing 12 SP4; util-linux-lang as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libblkid-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libblkid-devel-static as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libblkid1 as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libblkid1-32bit as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libfdisk-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libfdisk1 as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libmount-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libmount1 as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libmount1-32bit as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libsmartcols-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libsmartcols1 as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libuuid-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libuuid-devel-static as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libuuid1 as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libuuid1-32bit as component of SUSE Linux Enterprise High Performance Computing 15 SP1; util-linux as component of SUSE Linux Enterprise High Performance Computing 15 SP1; util-linux-lang as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libblkid-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2; libblkid-devel-static as component of SUSE Linux Enterprise High Performance Computing 15 SP2; libblkid1 as component of SUSE Linux Enterprise High Performance Computing 15 SP2; and 229 more · Fixed: lastlog2-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libblkid-devel-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libblkid-devel-static-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libblkid1-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libfdisk-devel-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libfdisk-devel-static-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libfdisk1-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; liblastlog2-2-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; liblastlog2-devel-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libmount-devel-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libmount-devel-static-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libmount1-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libsmartcols-devel-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libsmartcols-devel-static-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libsmartcols1-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libuuid-devel-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libuuid-devel-static-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; libuuid1-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; python313-libmount-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; util-linux-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; util-linux-lang-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; util-linux-systemd-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; util-linux-tty-tools-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; uuidd-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server 16.0; lastlog2-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server for SAP applications 16.0; libblkid-devel-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server for SAP applications 16.0; libblkid-devel-static-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server for SAP applications 16.0; libblkid1-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server for SAP applications 16.0; libfdisk-devel-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server for SAP applications 16.0; libfdisk-devel-static-2.41.1-160000.5.1 as component of SUSE Linux Enterprise Server for SAP applications 16.0; and 27 more
    After
    libblkid1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libblkid1-32bit as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libfdisk1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libmount1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libmount1-32bit as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libsmartcols1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libuuid1 as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libuuid1-32bit as component of SUSE Linux Enterprise High Performance Computing 12 SP4; util-linux as component of SUSE Linux Enterprise High Performance Computing 12 SP4; util-linux-lang as component of SUSE Linux Enterprise High Performance Computing 12 SP4; libblkid-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libblkid-devel-static as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libblkid1 as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libblkid1-32bit as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libfdisk-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libfdisk1 as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libmount-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libmount1 as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libmount1-32bit as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libsmartcols-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libsmartcols1 as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libuuid-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libuuid-devel-static as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libuuid1 as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libuuid1-32bit as component of SUSE Linux Enterprise High Performance Computing 15 SP1; util-linux as component of SUSE Linux Enterprise High Performance Computing 15 SP1; util-linux-lang as component of SUSE Linux Enterprise High Performance Computing 15 SP1; libblkid-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2; libblkid-devel-static as component of SUSE Linux Enterprise High Performance Computing 15 SP2; libblkid1 as component of SUSE Linux Enterprise High Performance Computing 15 SP2; and 229 more · Fixed: lastlog2-2.41.1-160000.5.1 as component of SUSE Linux Micro 6.2; libblkid1-2.41.1-160000.5.1 as component of SUSE Linux Micro 6.2; libfdisk1-2.41.1-160000.5.1 as component of SUSE Linux Micro 6.2; liblastlog2-2-2.41.1-160000.5.1 as component of SUSE Linux Micro 6.2; libmount1-2.41.1-160000.5.1 as component of SUSE Linux Micro 6.2; libsmartcols1-2.41.1-160000.5.1 as component of SUSE Linux Micro 6.2; libuuid1-2.41.1-160000.5.1 as component of SUSE Linux Micro 6.2; util-linux-2.41.1-160000.5.1 as component of SUSE Linux Micro 6.2; util-linux-systemd-2.41.1-160000.5.1 as component of SUSE Linux Micro 6.2
    SUSE Product Security Team ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    libblkid as a component of Red Hat Enterprise Linux 10; libblkid-devel as a component of Red Hat Enterprise Linux 10; libfdisk as a component of Red Hat Enterprise Linux 10; libfdisk-devel as a component of Red Hat Enterprise Linux 10; libmount as a component of Red Hat Enterprise Linux 10; libmount-devel as a component of Red Hat Enterprise Linux 10; libsmartcols as a component of Red Hat Enterprise Linux 10; libsmartcols-devel as a component of Red Hat Enterprise Linux 10; libuuid as a component of Red Hat Enterprise Linux 10; libuuid-devel as a component of Red Hat Enterprise Linux 10; python3-libmount as a component of Red Hat Enterprise Linux 10; util-linux as a component of Red Hat Enterprise Linux 10; util-linux-core as a component of Red Hat Enterprise Linux 10; util-linux.src as a component of Red Hat Enterprise Linux 10; uuidd as a component of Red Hat Enterprise Linux 10; libblkid as a component of Red Hat Enterprise Linux 7; libblkid-devel as a component of Red Hat Enterprise Linux 7; libmount as a component of Red Hat Enterprise Linux 7; libmount-devel as a component of Red Hat Enterprise Linux 7; libuuid as a component of Red Hat Enterprise Linux 7; libuuid-devel as a component of Red Hat Enterprise Linux 7; util-linux as a component of Red Hat Enterprise Linux 7; util-linux.src as a component of Red Hat Enterprise Linux 7; uuidd as a component of Red Hat Enterprise Linux 7; libblkid as a component of Red Hat Enterprise Linux 8; libblkid-devel as a component of Red Hat Enterprise Linux 8; libfdisk as a component of Red Hat Enterprise Linux 8; libfdisk-devel as a component of Red Hat Enterprise Linux 8; libmount as a component of Red Hat Enterprise Linux 8; libmount-devel as a component of Red Hat Enterprise Linux 8; and 26 more · Fixed: util-linux-main@aarch64 as a component of Red Hat Hardened Images; util-linux-main@src as a component of Red Hat Hardened Images; util-linux-main@x86_64 as a component of Red Hat Hardened Images
    After
    libblkid as a component of Red Hat Enterprise Linux 10; libblkid-devel as a component of Red Hat Enterprise Linux 10; libfdisk as a component of Red Hat Enterprise Linux 10; libfdisk-devel as a component of Red Hat Enterprise Linux 10; libmount as a component of Red Hat Enterprise Linux 10; libmount-devel as a component of Red Hat Enterprise Linux 10; libsmartcols as a component of Red Hat Enterprise Linux 10; libsmartcols-devel as a component of Red Hat Enterprise Linux 10; libuuid as a component of Red Hat Enterprise Linux 10; libuuid-devel as a component of Red Hat Enterprise Linux 10; python3-libmount as a component of Red Hat Enterprise Linux 10; util-linux as a component of Red Hat Enterprise Linux 10; util-linux-core as a component of Red Hat Enterprise Linux 10; util-linux.src as a component of Red Hat Enterprise Linux 10; uuidd as a component of Red Hat Enterprise Linux 10; libblkid as a component of Red Hat Enterprise Linux 7; libblkid-devel as a component of Red Hat Enterprise Linux 7; libmount as a component of Red Hat Enterprise Linux 7; libmount-devel as a component of Red Hat Enterprise Linux 7; libuuid as a component of Red Hat Enterprise Linux 7; libuuid-devel as a component of Red Hat Enterprise Linux 7; util-linux as a component of Red Hat Enterprise Linux 7; util-linux.src as a component of Red Hat Enterprise Linux 7; uuidd as a component of Red Hat Enterprise Linux 7; libblkid as a component of Red Hat Enterprise Linux 8; libblkid-devel as a component of Red Hat Enterprise Linux 8; libfdisk as a component of Red Hat Enterprise Linux 8; libfdisk-devel as a component of Red Hat Enterprise Linux 8; libmount as a component of Red Hat Enterprise Linux 8; libmount-devel as a component of Red Hat Enterprise Linux 8; and 27 more · Fixed: util-linux-main@aarch64 as a component of Red Hat Hardened Images; util-linux-main@src as a component of Red Hat Hardened Images; util-linux-main@x86_64 as a component of Red Hat Hardened Images
    Red Hat Product Security ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: 2.42.2-1.hum1 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: Red Hat Hardened Images: 2.42.2-1.hum1 < *
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-40053↗Vendor CSAF · SUSE Product Security Team↗CVE authority or vendor reference · Red Hat RHSA-2026:26573↗Vendor advisory↗Vendor advisory↗Patch or update 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-2026-13595 · cve.blacktree.nl