CVE catalog
CVE-2016-7951
libXtst vulnerabilities
- Severity
- Critical · CVSS 9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.44% · Oct 25, 2026
Multiple integer overflows in X.org libXtst before 1.2.3 allow remote X servers to trigger out-of-bounds memory access operations by leveraging the lack of range checks.
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 | libxtst | sid | 2:1.2.6-1 | fixed |
| Debian | libxtst | forky | 2:1.2.5-1 | fixed |
| Debian | libxtst | trixie | 2:1.2.5-1 | fixed |
| Debian | libxtst | bookworm | 2:1.2.3-1.1 | fixed |
| Ubuntu | libxtst | noble | 2:1.2.3-1 | fixed |
| Ubuntu | libxtst | noble | 2:1.2.3-1.1ubuntu0.1 | fixed |
| Ubuntu | libxtst-dev | noble | 2:1.2.3-1.1ubuntu0.1 | fixed |
| Ubuntu | libxtst-doc | noble | 2:1.2.3-1.1ubuntu0.1 | fixed |
| Ubuntu | libxtst6 | noble | 2:1.2.3-1.1ubuntu0.1 | fixed |
| Alpine | libxtst | 3.2 | 1.2.2-r1 | fixed |
| Alpine | libxtst | 3.3 | 1.2.2-r1 | fixed |
| Ubuntu | libxtst | pro | 2:1.2.2-1 | vulnerable |
| Ubuntu | libxtst | pro | 2:1.2.2-1ubuntu0.1~esm1 | fixed |
| Ubuntu | libxtst | pro | 2:1.2.3-1 | vulnerable |
| Ubuntu | libxtst | pro | 2:1.2.3-1ubuntu0.20.04.1~esm1 | fixed |
| Ubuntu | libxtst | 22.04 | 2:1.2.3-1build2 | vulnerable |
| Ubuntu | libxtst | 22.04 | 2:1.2.3-1build3 | vulnerable |
| Ubuntu | libxtst | 22.04 | 2:1.2.3-1build4 | vulnerable |
| Ubuntu | libxtst | 22.04 | 2:1.2.3-1ubuntu0.22.04.1 | fixed |
| Ubuntu | libxtst | 24.04 | 2:1.2.3-1.1 | vulnerable |
| Ubuntu | libxtst | 24.04 | 2:1.2.3-1.1build1 | vulnerable |
| Ubuntu | libxtst | 24.04 | 2:1.2.3-1.1ubuntu0.1 | fixed |
| Ubuntu | libxtst | 26.10 | 2:1.2.5-1build1 | vulnerable |
| Ubuntu | libxtst | 26.10 | 2:1.2.5-1ubuntu1 | fixed |
| Ubuntu | libxtst | 26.04 | 2:1.2.5-1 | vulnerable |
| Ubuntu | libxtst | 26.04 | 2:1.2.5-1build1 | vulnerable |
| Ubuntu | libxtst | 26.04 | 2:1.2.5-1ubuntu0.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libxtst | source | sid | 2:1.2.3-1 | low | Not reported | [840444] |
| Debian | libxtst | source | forky | 2:1.2.3-1 | low | Not reported | [840444] |
| Debian | libxtst | source | trixie | 2:1.2.3-1 | low | Not reported | [840444] |
| Debian | libxtst | source | bookworm | 2:1.2.3-1 | low | Not reported | [840444] |
| Ubuntu | libxtst | deb | noble | 2:1.2.3-1 | Not reported | Not reported | Not reported |
| Ubuntu | libxtst | deb | noble | 2:1.2.3-1.1ubuntu0.1 | Not reported | Not reported | Not reported |
| Ubuntu | libxtst-dev | deb | noble | 2:1.2.3-1.1ubuntu0.1 | Not reported | Not reported | Not reported |
| Ubuntu | libxtst-doc | deb | noble | 2:1.2.3-1.1ubuntu0.1 | Not reported | Not reported | Not reported |
| Ubuntu | libxtst6 | deb | noble | 2:1.2.3-1.1ubuntu0.1 | Not reported | Not reported | Not reported |
| Alpine | libxtst | apk | 3.2 | 1.2.2-r1 | Not reported | ALPINE-CVE-2016-7951 | Not reported |
| Alpine | libxtst | apk | 3.3 | 1.2.2-r1 | Not reported | ALPINE-CVE-2016-7951 | Not reported |
| Ubuntu | libxtst | deb | pro | 2:1.2.2-1ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2016-7951 | Not reported |
| Ubuntu | libxtst | deb | pro | 2:1.2.3-1ubuntu0.20.04.1~esm1 | Not reported | USN-8939-1 | Not reported |
| Ubuntu | libxtst | deb | 22.04 | 2:1.2.3-1ubuntu0.22.04.1 | Not reported | USN-8939-1 | Not reported |
| Ubuntu | libxtst | deb | 24.04 | 2:1.2.3-1.1ubuntu0.1 | Not reported | USN-8939-1 | Not reported |
| Ubuntu | libxtst | deb | 26.10 | 2:1.2.5-1ubuntu1 | Not reported | USN-8939-1 | Not reported |
| Ubuntu | libxtst | deb | 26.04 | 2:1.2.5-1ubuntu0.1 | Not reported | USN-8939-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libxtst6]Fixed
Source package: [libxtst]
Details (2)
2:1.2.3-1.1· amd64 · bookwormFixed · Fixed:
2:1.2.3-1usn · libxtst · debian · bookworm; usn · libxtst · debian · 12
2:1.2.3-1.1· arm64 · bookwormFixed · Fixed:
2:1.2.3-1usn · libxtst · debian · bookworm; usn · libxtst · debian · 12
- [libxtst-dev]Fixed
Source package: [libxtst]
Details (2)
2:1.2.3-1.1· amd64 · bookwormFixed · Fixed:
2:1.2.3-1usn · libxtst · debian · bookworm; usn · libxtst · debian · 12
2:1.2.3-1.1· arm64 · bookwormFixed · Fixed:
2:1.2.3-1usn · libxtst · debian · bookworm; usn · libxtst · debian · 12
- [libxtst-doc]Fixed
Source package: [libxtst]
Details (2)
2:1.2.3-1.1· all · bookwormFixed · Fixed:
2:1.2.3-1usn · libxtst · debian · bookworm; usn · libxtst · debian · 12
2:1.2.3-1.1· all · bookwormFixed · Fixed:
2:1.2.3-1usn · libxtst · debian · bookworm; usn · libxtst · debian · 12
[Debian 13 (Trixie)]
- [libxtst6]Fixed
Source package: [libxtst]
Details (2)
2:1.2.5-1· amd64 · trixieFixed · Fixed:
2:1.2.3-1usn · libxtst · debian · 13
2:1.2.5-1· arm64 · trixieFixed · Fixed:
2:1.2.3-1usn · libxtst · debian · 13
- [libxtst-dev]Fixed
Source package: [libxtst]
Details (2)
2:1.2.5-1· amd64 · trixieFixed · Fixed:
2:1.2.3-1usn · libxtst · debian · 13
2:1.2.5-1· arm64 · trixieFixed · Fixed:
2:1.2.3-1usn · libxtst · debian · 13
- [libxtst-doc]Fixed
Source package: [libxtst]
Details (2)
2:1.2.5-1· all · trixieFixed · Fixed:
2:1.2.3-1usn · libxtst · debian · 13
2:1.2.5-1· all · trixieFixed · Fixed:
2:1.2.3-1usn · libxtst · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2016_2505-1.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2016-7951]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2016-7951]
- [https://osv.dev/vulnerability/DLA-686-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2016-7951]
- [https://osv.dev/vulnerability/USN-8939-1]
- [https://security-tracker.debian.org/tracker/CVE-2016-7951]
- [https://ubuntu.com/security/notices/USN-8939-1]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]