CVE catalog
CVE-2026-54240
libde265 vulnerabilities
- Severity
- High · CVSS 7.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.39% · Oct 25, 2026
libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.1.1 use signed 32-bit arithmetic to calculate pixel offsets, allowing a crafted HEVC stream with large image dimensions to trigger an integer overflow and cause out-of-bounds heap reads or writes, potentially disclosing data, corrupting memory, or crashing the decoder. Version 1.1.1 contains a patch.
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 | libde265 | sid | 1.1.3-1 | fixed |
| Debian | libde265 | forky | 1.1.3-1 | fixed |
| Debian | libde265 | trixie | 1.0.15-1+deb13u2 | fixed |
| Debian | libde265 | trixie-security | 1.0.15-1+deb13u2 | fixed |
| Debian | libde265 | bookworm | 1.0.11-1+deb12u2 | vulnerable |
| Debian | libde265 | bookworm-security | 1.0.11-1+deb12u3 | fixed |
| Ubuntu | libde265 | noble | Not reported | vulnerable |
| Ubuntu | libde265 | noble | 1.0.15-1ubuntu0.1 | fixed |
| Ubuntu | libde265-0 | noble | 1.0.15-1ubuntu0.1 | fixed |
| Ubuntu | libde265-dev | noble | 1.0.15-1ubuntu0.1 | fixed |
| Ubuntu | libde265-examples | noble | 1.0.15-1ubuntu0.1 | fixed |
| Ubuntu | libde265 | pro | 1.0.16-1 | vulnerable |
| Ubuntu | libde265 | pro | 1.0.16-1build1 | vulnerable |
| Ubuntu | libde265 | pro | 1.0.16-1ubuntu0.1~esm1 | fixed |
| Ubuntu | libde265 | 24.04 | 1.0.12-2 | vulnerable |
| Ubuntu | libde265 | 24.04 | 1.0.13-1 | vulnerable |
| Ubuntu | libde265 | 24.04 | 1.0.15-1 | vulnerable |
| Ubuntu | libde265 | 24.04 | 1.0.15-1build1 | vulnerable |
| Ubuntu | libde265 | 24.04 | 1.0.15-1build2 | vulnerable |
| Ubuntu | libde265 | 24.04 | 1.0.15-1build3 | vulnerable |
| Ubuntu | libde265 | 24.04 | 1.0.15-1ubuntu0.1 | fixed |
| Ubuntu | libde265 | 25.10 | 1.0.15-1build5 | vulnerable |
| Ubuntu | libde265 | 25.10 | 1.0.16-1 | vulnerable |
| Alpine | libde265 | 3.24 | 1.1.3-r0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libde265 | source | sid | 1.1.1-1 | not yet assigned | Not reported | Not reported |
| Debian | libde265 | source | forky | 1.1.1-1 | not yet assigned | Not reported | Not reported |
| Debian | libde265 | source | trixie | 1.0.15-1+deb13u1 | not yet assigned | Not reported | Not reported |
| Debian | libde265 | source | bookworm | 1.0.11-1+deb12u3 | not yet assigned | Not reported | Not reported |
| Ubuntu | libde265 | deb | noble | 1.0.15-1ubuntu0.1 | Not reported | Not reported | Not reported |
| Ubuntu | libde265-0 | deb | noble | 1.0.15-1ubuntu0.1 | Not reported | Not reported | Not reported |
| Ubuntu | libde265-dev | deb | noble | 1.0.15-1ubuntu0.1 | Not reported | Not reported | Not reported |
| Ubuntu | libde265-examples | deb | noble | 1.0.15-1ubuntu0.1 | Not reported | Not reported | Not reported |
| Ubuntu | libde265 | deb | pro | 1.0.16-1ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2026-54240 | Not reported |
| Ubuntu | libde265 | deb | 24.04 | 1.0.15-1ubuntu0.1 | Not reported | UBUNTU-CVE-2026-54240 | Not reported |
| Alpine | libde265 | apk | 3.24 | 1.1.3-r0 | Not reported | ALPINE-CVE-2026-54240 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libde265-0]Affected
Source package: [libde265]
Details (2)
1.0.11-1+deb12u2· amd64 · bookwormAffected · Fixed:
1.0.11-1+deb12u3usn · libde265 · debian · bookworm; usn · libde265 · debian · 12
1.0.11-1+deb12u2· arm64 · bookwormAffected · Fixed:
1.0.11-1+deb12u3usn · libde265 · debian · bookworm; usn · libde265 · debian · 12
- [libde265-dev]Affected
Source package: [libde265]
Details (2)
1.0.11-1+deb12u2· amd64 · bookwormAffected · Fixed:
1.0.11-1+deb12u3usn · libde265 · debian · bookworm; usn · libde265 · debian · 12
1.0.11-1+deb12u2· arm64 · bookwormAffected · Fixed:
1.0.11-1+deb12u3usn · libde265 · debian · bookworm; usn · libde265 · debian · 12
- [libde265-examples]Affected
Source package: [libde265]
Details (2)
1.0.11-1+deb12u2· amd64 · bookwormAffected · Fixed:
1.0.11-1+deb12u3usn · libde265 · debian · bookworm; usn · libde265 · debian · 12
1.0.11-1+deb12u2· arm64 · bookwormAffected · Fixed:
1.0.11-1+deb12u3usn · libde265 · debian · bookworm; usn · libde265 · debian · 12
[Debian 13 (Trixie)]
- [libde265-0]Affected
Source package: [libde265]
Details (5)
1.0.15-1+b3· amd64 · trixieAffected · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
1.0.15-1+b3· arm64 · trixieAffected · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
1.0.15-1+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
1.0.15-1+deb13u1· arm64 · trixie-securityFixed · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
1.0.15-1+deb13u2· amd64 · trixie-securityFixed · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
- [libde265-dev]Affected
Source package: [libde265]
Details (5)
1.0.15-1+b3· amd64 · trixieAffected · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
1.0.15-1+b3· arm64 · trixieAffected · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
1.0.15-1+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
1.0.15-1+deb13u1· arm64 · trixie-securityFixed · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
1.0.15-1+deb13u2· amd64 · trixie-securityFixed · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
- [libde265-examples]Affected
Source package: [libde265]
Details (5)
1.0.15-1+b3· amd64 · trixieAffected · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
1.0.15-1+b3· arm64 · trixieAffected · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
1.0.15-1+deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
1.0.15-1+deb13u1· arm64 · trixie-securityFixed · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
1.0.15-1+deb13u2· amd64 · trixie-securityFixed · Fixed:
1.0.15-1+deb13u1usn · libde265 · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-54240]
- [https://osv.dev/vulnerability/ALPINE-CVE-2026-54240]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-54240]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-54240]
- [https://security-tracker.debian.org/tracker/CVE-2026-54240]
- [https://ubuntu.com/security/notices/USN-8573-1]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Ubuntu Security Notices (USN)]