CVE catalog
CVE-2025-5318
libssh vulnerabilities
- Severity
- Medium · CVSS 5.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.84% · Oct 25, 2026
A flaw was found in the libssh library in versions less than 0.11.2. An out-of-bounds read can be triggered in the sftp_handle function due to an incorrect comparison check that permits the function to access memory beyond the valid handle list and to return an invalid pointer, which is used in further processing. This vulnerability allows an authenticated remote attacker to potentially read unintended memory regions, exposing sensitive information or affect service behavior.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libssh | sid | 0.12.2-1 | fixed |
| Debian | libssh | forky | 0.12.2-1 | fixed |
| Debian | libssh | trixie | 0.11.5-0+deb13u1 | fixed |
| Debian | libssh | trixie-security | 0.11.5-0+deb13u1 | fixed |
| Debian | libssh | bookworm | 0.10.6-0+deb12u2 | fixed |
| Debian | libssh | bookworm-security | 0.10.6-0+deb12u3 | fixed |
| Ubuntu | libssh | noble | 0.10.6-0+deb12u2 | fixed |
| Ubuntu | libssh | noble | 0.10.6-2ubuntu0.1 | fixed |
| Ubuntu | libssh-4 | noble | 0.10.6-2ubuntu0.1 | fixed |
| Ubuntu | libssh-dev | noble | 0.10.6-2ubuntu0.1 | fixed |
| Ubuntu | libssh-doc | noble | 0.10.6-2ubuntu0.1 | fixed |
| Ubuntu | libssh-gcrypt-4 | noble | 0.10.6-2ubuntu0.1 | fixed |
| Ubuntu | libssh-gcrypt-dev | noble | 0.10.6-2ubuntu0.1 | fixed |
| Cpe | openshift_container_platform | Not reported | Not reported | unknown |
| Cpe | enterprise_linux | Not reported | Not reported | unknown |
| Cpe | libssh | Not reported | 0.11.2 | fixed |
| Ubuntu | libssh | pro | 0.9.0-1ubuntu1 | vulnerable |
| Ubuntu | libssh | pro | 0.9.0-1ubuntu4 | vulnerable |
| Ubuntu | libssh | pro | 0.9.0-1ubuntu5 | vulnerable |
| Ubuntu | libssh | pro | 0.9.3-2ubuntu1 | vulnerable |
| Ubuntu | libssh | pro | 0.9.3-2ubuntu2 | vulnerable |
| Ubuntu | libssh | pro | 0.9.3-2ubuntu2.1 | vulnerable |
| Ubuntu | libssh | pro | 0.9.3-2ubuntu2.2 | vulnerable |
| Ubuntu | libssh | pro | 0.9.3-2ubuntu2.3 | vulnerable |
| Ubuntu | libssh | pro | 0.9.3-2ubuntu2.4 | vulnerable |
| Ubuntu | libssh | pro | 0.9.3-2ubuntu2.5 | vulnerable |
| Ubuntu | libssh | pro | 0.9.3-2ubuntu2.5+esm1 | fixed |
| Ubuntu | libssh | 22.04 | 0.9.6-1 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-1build1 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-2 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-2build1 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-2ubuntu0.22.04.1 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-2ubuntu0.22.04.2 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-2ubuntu0.22.04.3 | vulnerable |
| Ubuntu | libssh | 22.04 | 0.9.6-2ubuntu0.22.04.4 | fixed |
| Ubuntu | libssh | 24.04 | 0.10.5-3ubuntu1 | vulnerable |
| Ubuntu | libssh | 24.04 | 0.10.5-3ubuntu2 | vulnerable |
| Ubuntu | libssh | 24.04 | 0.10.6-2 | vulnerable |
| Ubuntu | libssh | 24.04 | 0.10.6-2build1 | vulnerable |
| Ubuntu | libssh | 24.04 | 0.10.6-2build2 | vulnerable |
| Ubuntu | libssh | 24.04 | 0.10.6-2ubuntu0.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libssh | source | sid | 0.11.2-1 | not yet assigned | Not reported | [1108407] |
| Debian | libssh | source | forky | 0.11.2-1 | not yet assigned | Not reported | [1108407] |
| Debian | libssh | source | trixie | 0.11.2-1 | not yet assigned | Not reported | [1108407] |
| Debian | libssh | source | bookworm | 0.10.6-0+deb12u2 | not yet assigned | Not reported | [1108407] |
| Ubuntu | libssh | deb | noble | 0.10.6-0+deb12u2 | Not reported | Not reported | Not reported |
| Ubuntu | libssh | deb | noble | 0.10.6-2ubuntu0.1 | Not reported | Not reported | Not reported |
| Ubuntu | libssh-4 | deb | noble | 0.10.6-2ubuntu0.1 | Not reported | Not reported | Not reported |
| Ubuntu | libssh-dev | deb | noble | 0.10.6-2ubuntu0.1 | Not reported | Not reported | Not reported |
| Ubuntu | libssh-doc | deb | noble | 0.10.6-2ubuntu0.1 | Not reported | Not reported | Not reported |
| Ubuntu | libssh-gcrypt-4 | deb | noble | 0.10.6-2ubuntu0.1 | Not reported | Not reported | Not reported |
| Ubuntu | libssh-gcrypt-dev | deb | noble | 0.10.6-2ubuntu0.1 | Not reported | Not reported | Not reported |
| Cpe | libssh | cpe | Not reported | 0.11.2 | Not reported | NVD-CVE-2025-5318 | Not reported |
| Ubuntu | libssh | deb | pro | 0.9.3-2ubuntu2.5+esm1 | Not reported | UBUNTU-CVE-2025-5318 | Not reported |
| Ubuntu | libssh | deb | 22.04 | 0.9.6-2ubuntu0.22.04.4 | Not reported | UBUNTU-CVE-2025-5318 | Not reported |
| Ubuntu | libssh | deb | 24.04 | 0.10.6-2ubuntu0.1 | Not reported | UBUNTU-CVE-2025-5318 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libssh-4]Affected
Source package: [libssh]
Details (4)
0.10.6-0+deb12u2· amd64 · bookwormFixed · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u2· arm64 · bookwormFixed · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u1· amd64 · bookworm-securityAffected · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u1· arm64 · bookworm-securityAffected · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
- [libssh-dev]Affected
Source package: [libssh]
Details (4)
0.10.6-0+deb12u2· amd64 · bookwormFixed · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u2· arm64 · bookwormFixed · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u1· amd64 · bookworm-securityAffected · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u1· arm64 · bookworm-securityAffected · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
- [libssh-doc]Affected
Source package: [libssh]
Details (4)
0.10.6-0+deb12u2· all · bookwormFixed · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u2· all · bookwormFixed · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u1· all · bookworm-securityAffected · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u1· all · bookworm-securityAffected · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
- [libssh-gcrypt-4]Affected
Source package: [libssh]
Details (4)
0.10.6-0+deb12u2· amd64 · bookwormFixed · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u2· arm64 · bookwormFixed · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u1· amd64 · bookworm-securityAffected · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u1· arm64 · bookworm-securityAffected · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
- [libssh-gcrypt-dev]Affected
Source package: [libssh]
Details (4)
0.10.6-0+deb12u2· amd64 · bookwormFixed · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u2· arm64 · bookwormFixed · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u1· amd64 · bookworm-securityAffected · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
0.10.6-0+deb12u1· arm64 · bookworm-securityAffected · Fixed:
0.10.6-0+deb12u2usn · libssh · debian · bookworm; usn · libssh · debian · 12
[Debian 13 (Trixie)]
- [libssh-4]Fixed
Source package: [libssh]
Details (4)
0.11.2-1+deb13u1· amd64 · trixieFixed · Fixed:
0.11.2-1usn · libssh · debian · 13
0.11.2-1+deb13u1· arm64 · trixieFixed · Fixed:
0.11.2-1usn · libssh · debian · 13
0.11.5-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
0.11.2-1usn · libssh · debian · 13
0.11.5-0+deb13u1· arm64 · trixie-securityFixed · Fixed:
0.11.2-1usn · libssh · debian · 13
- [libssh-dev]Fixed
Source package: [libssh]
Details (4)
0.11.2-1+deb13u1· amd64 · trixieFixed · Fixed:
0.11.2-1usn · libssh · debian · 13
0.11.2-1+deb13u1· arm64 · trixieFixed · Fixed:
0.11.2-1usn · libssh · debian · 13
0.11.5-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
0.11.2-1usn · libssh · debian · 13
0.11.5-0+deb13u1· arm64 · trixie-securityFixed · Fixed:
0.11.2-1usn · libssh · debian · 13
- [libssh-doc]Fixed
Source package: [libssh]
Details (4)
0.11.2-1+deb13u1· all · trixieFixed · Fixed:
0.11.2-1usn · libssh · debian · 13
0.11.2-1+deb13u1· all · trixieFixed · Fixed:
0.11.2-1usn · libssh · debian · 13
0.11.5-0+deb13u1· all · trixie-securityFixed · Fixed:
0.11.2-1usn · libssh · debian · 13
0.11.5-0+deb13u1· all · trixie-securityFixed · Fixed:
0.11.2-1usn · libssh · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2025_18231.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2025-5318]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-5318]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-5318]
- [https://security-tracker.debian.org/tracker/CVE-2025-5318]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-5318.json]
- [https://ubuntu.com/security/notices/USN-7619-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1194.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]