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Full vulnerability report · 2025
CVE-2025-5351High confidence

Libssh: double free vulnerability in libssh key export functions

libssh · libssh

Official source article: Red Hat RHSA-2026:18683 ↗. Check the applicable product and release in the original source.

6.5MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
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 0.61% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs libssh libssh 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.

Distribution package intelligence

Release-specific package status

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

7 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
Alpine v3.23v3.23 · communitylibsshVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.0.11.2-r0Alpine Security Database ↗Source updated 11 Sep 2026
Alpine v3.22v3.22 · communitylibsshVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.0.11.2-r0Alpine Security Database ↗Source updated 11 Sep 2026
Debian trixietrixie · sourcelibsshVendor fix publishedDebian records a fixed source-package version for this release.0.11.2-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcelibsshVendor fix publishedDebian records a fixed source-package version for this release.0.10.6-0+deb12u2Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcelibsshVendor fix publishedDebian records a fixed source-package version for this release.0.11.2-1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcelibsshVendor fix publishedDebian records a fixed source-package version for this release.0.11.2-1Debian Security Tracker ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelibsshVendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.0.10.6-2ubuntu0.1Canonical 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.

1 current
CVE-2025-5351 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitylibssh: Double Free Vulnerability in libssh Key Export Functions
18 known affected

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

  • libssh as a component of Red Hat Enterprise Linux 10
  • libssh-config as a component of Red Hat Enterprise Linux 10
  • libssh-devel as a component of Red Hat Enterprise Linux 10
  • libssh.src as a component of Red Hat Enterprise Linux 10
  • libssh2 as a component of Red Hat Enterprise Linux 6
  • libssh2-devel as a component of Red Hat Enterprise Linux 6
  • libssh2-docs as a component of Red Hat Enterprise Linux 6
  • libssh2.src as a component of Red Hat Enterprise Linux 6
  • libssh2 as a component of Red Hat Enterprise Linux 7
  • libssh2-devel as a component of Red Hat Enterprise Linux 7
  • libssh2-docs as a component of Red Hat Enterprise Linux 7
  • libssh2.src as a component of Red Hat Enterprise Linux 7
Summary
A flaw was found in the key export functionality of libssh. The issue occurs in the internal function responsible for converting cryptographic keys into serialized formats. During error handling, a memory structure is freed but not cleared, leading to a potential double free issue if an additional failure occurs later in the function. This condition may result in heap corruption or application instability in low-memory scenarios, posing a risk to system reliability where key export operations are performed.
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
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-2025-19935

No EUVD known-exploited evidence

A flaw was found in the key export functionality of libssh. The issue occurs in the internal function responsible for converting cryptographic keys into serialized formats. During error handling, a memory structure is freed but not cleared, leading to a potential double free issue if an additional failure occurs later in the function. This condition may result in heap corruption or application instability in low-memory scenarios, posing a risk to system reliability where key export operations are performed.

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
6.5 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

A flaw was found in the key export functionality of libssh. The issue occurs in the internal function responsible for converting cryptographic keys into serialized formats. During error handling, a memory structure is freed but not cleared, leading to a potential double free issue if an additional failure occurs later in the function. This condition may result in heap corruption or application instability in low-memory scenarios, posing a risk to system reliability where key export operations are performed.

What

A flaw was found in the key export functionality of libssh. The issue occurs in the internal function responsible for converting cryptographic keys into serialized formats. During error handling, a memory structure is freed but not cleared, leading to a potential double free issue if an additional failure occurs later in the function. This condition may result in heap corruption or application instability in low-memory scenarios, posing a risk to system reliability where key export operations are performed.

Why

The product calls free() twice on the same memory address.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

A flaw was found in the key export functionality of libssh. The issue occurs in the internal function responsible for converting cryptographic keys into serialized formats. During error handling, a memory structure is freed but not cleared, leading to a potential double free issue if an additional failure occurs later in the function. This condition may result in heap corruption or application instability in low-memory scenarios, posing a risk to system reliability where key export operations are performed.

Why

The product calls free() twice on the same memory address.

How

An attacker operating through a network path may attempt exploitation with low privileges. 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.
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
a network path → Double Free → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
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-415 ↗

CWE-415: Double Free. The product calls free() twice on the same memory address.

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

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

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.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
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.
NetworkCWE-415
A

Official authority intelligence

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

ENISA EUVD · EUVD-2025-19935Official EUVD mapping

A flaw was found in the key export functionality of libssh. The issue occurs in the internal function responsible for converting cryptographic keys into serialized formats. During error handling, a memory structure is freed but not cleared, leading to a potential double free issue if an additional failure occurs later in the function. This condition may result in heap corruption or application instability in low-memory scenarios, posing a risk to system reliability where key export operations are performed.

Official EUVD record ↗
BSI · German · WID-SEC-2025-1423libssh: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in libssh ausnutzen, um einen Denial of Service Angriff durchzuführen, um Sicherheitsvorkehrungen zu umgehen, und potentiell weitere nicht spezifizierte Auswirkungen zu verursachen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0469Multiples vulnérabilités dans Oracle MySQL

ERecord?id=CVE-2025-14819 Référence CVE CVE-2025-15079 https://www.cve.org/CVERecord?id=CVE-2025-15079 Référence CVE CVE-2025-15224 https://www.cve.org/CVERecord?id=CVE-2025-15224 Référence CVE CVE-2025-15467 https://www.cve.org/CVERecord?id=CVE-2025-15467 Référence CVE CVE-2025-15468 https://www.cve.org/CVERecord?id=CVE-2025-15468 Référence CVE CVE-2025-15469 https://www.cve.org/CVERecord?id=CVE-2025-15469 Référence CVE CVE-2025-4877 https://www.cve.org/CVERecord?id=CVE-2025-4877 Référence CVE CVE-2025-4878 https://www.cve.org/CVERecord?id=CVE-2025-4878 Référence CVE CVE-2025-5318 https://www.cve.org/CVERecord?id=CVE-2025-5318 Référence CVE CVE-2025-5351 https://www.cve.org/CVERecord?id=CVE-2025-5351 Référence CVE CVE-2025-5372 https://www.cve.org/CVERecord?id=CVE-2025-5372 Référence CVE CVE-2025-5449 https://www.cve.org/CVERecord?id=CVE-2025-5449 Référence CVE CVE-2025-5987 https://www.cve.org/CVERecord?id=CVE-2025-5987 Référence CVE CVE-2025-66199 https://www.cve.org/CVERecord?id=CVE-2025-66199 Référence CVE CVE-2025-68160 https://www.cve.org/CVERecord?id=CVE-2025-68160 Référence CVE CVE-2025-69418 https://www.cve.org/CVERecord?id=CVE-2025-69418 Référence CVE CVE-2025-69419 https://www.cve.org/CVERecord?id=CVE-2025-69419 Référence CVE CVE-2025-69420 https://www.cve.org/CVERecord?id=CVE-202

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0969Multiples vulnérabilités dans les produits VMware

ord?id=CVE-2025-53054 Référence CVE CVE-2025-53057 https://www.cve.org/CVERecord?id=CVE-2025-53057 Référence CVE CVE-2025-53062 https://www.cve.org/CVERecord?id=CVE-2025-53062 Référence CVE CVE-2025-53066 https://www.cve.org/CVERecord?id=CVE-2025-53066 Référence CVE CVE-2025-53069 https://www.cve.org/CVERecord?id=CVE-2025-53069 Référence CVE CVE-2025-53101 https://www.cve.org/CVERecord?id=CVE-2025-53101 Référence CVE CVE-2025-5318 https://www.cve.org/CVERecord?id=CVE-2025-5318 Référence CVE CVE-2025-53367 https://www.cve.org/CVERecord?id=CVE-2025-53367 Référence CVE CVE-2025-53506 https://www.cve.org/CVERecord?id=CVE-2025-53506 Référence CVE CVE-2025-5351 https://www.cve.org/CVERecord?id=CVE-2025-5351 Référence CVE CVE-2025-53547 https://www.cve.org/CVERecord?id=CVE-2025-53547 Référence CVE CVE-2025-53643 https://www.cve.org/CVERecord?id=CVE-2025-53643 Référence CVE CVE-2025-5372 https://www.cve.org/CVERecord?id=CVE-2025-5372 Référence CVE CVE-2025-53859 https://www.cve.org/CVERecord?id=CVE-2025-53859 Référence CVE CVE-2025-53864 https://www.cve.org/CVERecord?id=CVE-2025-53864 Référence CVE CVE-2025-53905 https://www.cve.org/CVERecord?id=CVE-2025-53905 Référence CVE CVE-2025-53906 https://www.cve.org/CVERecord?id=CVE-2025-53906 Référence CVE CVE-2025-54388 https://www.cve.org/CVERecord?id=CVE

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0907Multiples vulnérabilités dans Oracle MySQL

ord?id=CVE-2025-53042 Référence CVE CVE-2025-53044 https://www.cve.org/CVERecord?id=CVE-2025-53044 Référence CVE CVE-2025-53045 https://www.cve.org/CVERecord?id=CVE-2025-53045 Référence CVE CVE-2025-53053 https://www.cve.org/CVERecord?id=CVE-2025-53053 Référence CVE CVE-2025-53054 https://www.cve.org/CVERecord?id=CVE-2025-53054 Référence CVE CVE-2025-53062 https://www.cve.org/CVERecord?id=CVE-2025-53062 Référence CVE CVE-2025-53067 https://www.cve.org/CVERecord?id=CVE-2025-53067 Référence CVE CVE-2025-53069 https://www.cve.org/CVERecord?id=CVE-2025-53069 Référence CVE CVE-2025-5318 https://www.cve.org/CVERecord?id=CVE-2025-5318 Référence CVE CVE-2025-5351 https://www.cve.org/CVERecord?id=CVE-2025-5351 Référence CVE CVE-2025-5372 https://www.cve.org/CVERecord?id=CVE-2025-5372 Référence CVE CVE-2025-5399 https://www.cve.org/CVERecord?id=CVE-2025-5399 Référence CVE CVE-2025-5449 https://www.cve.org/CVERecord?id=CVE-2025-5449 Référence CVE CVE-2025-5987 https://www.cve.org/CVERecord?id=CVE-2025-5987 Référence CVE CVE-2025-6965 https://www.cve.org/CVERecord?id=CVE-2025-6965 Gestion détaillée du document le 22 octobre 2025 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2025-012224libssh の libssh 等複数ベンダの製品における二重解放に関する脆弱性

libssh の libssh 等複数ベンダの製品には、二重解放に関する脆弱性が存在します。

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.
Patch available
Affected
Fixed
Action
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 4 Jul 2025 · Last source change 1 Sept 2026, 11:51 UTC · CWE-415 · Double 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-2025-19935
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
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
    libssh as a component of Red Hat Enterprise Linux 10; libssh-config as a component of Red Hat Enterprise Linux 10; libssh-devel as a component of Red Hat Enterprise Linux 10; libssh.src as a component of Red Hat Enterprise Linux 10; libssh2 as a component of Red Hat Enterprise Linux 6; libssh2-devel as a component of Red Hat Enterprise Linux 6; libssh2-docs as a component of Red Hat Enterprise Linux 6; libssh2.src as a component of Red Hat Enterprise Linux 6; libssh2 as a component of Red Hat Enterprise Linux 7; libssh2-devel as a component of Red Hat Enterprise Linux 7; libssh2-docs as a component of Red Hat Enterprise Linux 7; libssh2.src as a component of Red Hat Enterprise Linux 7; libssh as a component of Red Hat Enterprise Linux 8; libssh-config as a component of Red Hat Enterprise Linux 8; libssh-devel as a component of Red Hat Enterprise Linux 8; libssh.src as a component of Red Hat Enterprise Linux 8; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: libssh-debuginfo-0:0.10.4-18.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debuginfo-0:0.10.4-18.el9.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debuginfo-0:0.10.4-18.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debuginfo-0:0.10.4-18.el9.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debuginfo-0:0.10.4-18.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debugsource-0:0.10.4-18.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debugsource-0:0.10.4-18.el9.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debugsource-0:0.10.4-18.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debugsource-0:0.10.4-18.el9.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debugsource-0:0.10.4-18.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-devel-0:0.10.4-18.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-devel-0:0.10.4-18.el9.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-devel-0:0.10.4-18.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-devel-0:0.10.4-18.el9.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-devel-0:0.10.4-18.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-0:0.10.4-18.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-0:0.10.4-18.el9.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-0:0.10.4-18.el9.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-0:0.10.4-18.el9.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-0:0.10.4-18.el9.src as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-0:0.10.4-18.el9.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-config-0:0.10.4-18.el9.noarch as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debuginfo-0:0.10.4-18.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debuginfo-0:0.10.4-18.el9.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debuginfo-0:0.10.4-18.el9.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debuginfo-0:0.10.4-18.el9.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debuginfo-0:0.10.4-18.el9.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debugsource-0:0.10.4-18.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debugsource-0:0.10.4-18.el9.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debugsource-0:0.10.4-18.el9.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); and 2 more
    After
    libssh as a component of Red Hat Enterprise Linux 10; libssh-config as a component of Red Hat Enterprise Linux 10; libssh-devel as a component of Red Hat Enterprise Linux 10; libssh.src as a component of Red Hat Enterprise Linux 10; libssh2 as a component of Red Hat Enterprise Linux 6; libssh2-devel as a component of Red Hat Enterprise Linux 6; libssh2-docs as a component of Red Hat Enterprise Linux 6; libssh2.src as a component of Red Hat Enterprise Linux 6; libssh2 as a component of Red Hat Enterprise Linux 7; libssh2-devel as a component of Red Hat Enterprise Linux 7; libssh2-docs as a component of Red Hat Enterprise Linux 7; libssh2.src as a component of Red Hat Enterprise Linux 7; libssh as a component of Red Hat Enterprise Linux 8; libssh-config as a component of Red Hat Enterprise Linux 8; libssh-devel as a component of Red Hat Enterprise Linux 8; libssh.src as a component of Red Hat Enterprise Linux 8; openshift/ose-rhel-coreos-8 as a component of Red Hat OpenShift Container Platform 4; openshift/ose-rhel-coreos-9 as a component of Red Hat OpenShift Container Platform 4 · Fixed: libssh-debuginfo-0:0.10.4-18.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debuginfo-0:0.10.4-18.el9.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debuginfo-0:0.10.4-18.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debuginfo-0:0.10.4-18.el9.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debuginfo-0:0.10.4-18.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debugsource-0:0.10.4-18.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debugsource-0:0.10.4-18.el9.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debugsource-0:0.10.4-18.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debugsource-0:0.10.4-18.el9.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-debugsource-0:0.10.4-18.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-devel-0:0.10.4-18.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-devel-0:0.10.4-18.el9.i686 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-devel-0:0.10.4-18.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-devel-0:0.10.4-18.el9.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-devel-0:0.10.4-18.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9); libssh-0:0.10.4-18.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-0:0.10.4-18.el9.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-0:0.10.4-18.el9.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-0:0.10.4-18.el9.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-0:0.10.4-18.el9.src as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-0:0.10.4-18.el9.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-config-0:0.10.4-18.el9.noarch as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debuginfo-0:0.10.4-18.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debuginfo-0:0.10.4-18.el9.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debuginfo-0:0.10.4-18.el9.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debuginfo-0:0.10.4-18.el9.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debuginfo-0:0.10.4-18.el9.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debugsource-0:0.10.4-18.el9.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debugsource-0:0.10.4-18.el9.i686 as a component of Red Hat Enterprise Linux BaseOS (v. 9); libssh-debugsource-0:0.10.4-18.el9.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9); and 2 more
    Red Hat Product Security ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    0.10.0 < 0.11.2 · Fixed: 0:0.10.4-18.el9 < *
    After
    libssh: 0.10.0 < 0.11.2 · Fixed: Red Hat Enterprise Linux 9: 0:0.10.4-18.el9 < *
    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-2025-19935↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor reference · Red Hat RHSA-2026:18683↗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-2025-5351 · cve.blacktree.nl