CVE-2025-25467
Insufficient tracking and releasing of allocated used memory in libx264 git master allows...
9.8 Critical
Insufficient tracking and releasing of allocated used memory in libx264 git master allows attackers to execute arbitrary code via creating a crafted AAC file.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
0.67%Up 0.6 points since Feb 19, 2025
What each source reports
CVE List Score used
Insufficient tracking and releasing of allocated used memory in libx264 git master allows attackers to execute arbitrary code via creating a crafted AAC file.
- Record
CVE-2025-25467- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-94
- Updated
- 2026-11-02
EUVDEUVD-2025-4692
Insufficient tracking and releasing of allocated used memory in libx264 git master allows attackers to execute arbitrary code via creating a crafted AAC file.
- Record
EUVD-2025-4692- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-738r-f7wg-pq98
Insufficient tracking and releasing of allocated used memory in libx264 git master allows...
Insufficient tracking and releasing of allocated used memory in libx264 git master allows attackers to execute arbitrary code via creating a crafted AAC file.
- Record
GHSA-738r-f7wg-pq98- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-94
- Updated
- 2026-11-02
NVD
Insufficient tracking and releasing of allocated used memory in libx264 git master allows attackers to execute arbitrary code via creating a crafted AAC file.
- Record
CVE-2025-25467- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-94
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2025-25467
Insufficient tracking and releasing of allocated used memory in libx264 git master allows attackers to execute arbitrary code via creating a crafted AAC file.
- Record
DEBIAN-CVE-2025-25467- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2025-25467
Insufficient tracking and releasing of allocated used memory in libx264 git master allows attackers to execute arbitrary code via creating a crafted AAC file.
- Record
UBUNTU-CVE-2025-25467- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVNo score
Insufficient tracking and releasing of allocated used memory in libx264 git master allows attackers to execute arbitrary code via creating a crafted AAC file.
- Record
CVE-2025-25467- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
x264Debian:12 | All versions, plus listed versions 2:0.164.3095+gitbaee400-32:0.164.3108+git31e19f9-12:0.164.3108+git31e19f9-22:0.164.3108+git31e19f9-32:0.165.3222+gitb35605ac-12:0.165.3222+gitb35605ac-22:0.165.3222+gitb35605ac-32:0.165.3223+git20250910.0480cb0-1 | None known |
x264Debian:13 | All versions, plus listed versions 2:0.164.3108+git31e19f9-22:0.164.3108+git31e19f9-32:0.165.3222+gitb35605ac-12:0.165.3222+gitb35605ac-22:0.165.3222+gitb35605ac-32:0.165.3223+git20250910.0480cb0-1 | None known |
x264Debian:14 | All versions, plus listed versions 2:0.164.3108+git31e19f9-22:0.164.3108+git31e19f9-32:0.165.3222+gitb35605ac-12:0.165.3222+gitb35605ac-22:0.165.3222+gitb35605ac-32:0.165.3223+git20250910.0480cb0-1 | None known |
libavUbuntu:Pro:14.04:LTS | All versions, plus listed versions 6:0.8.7-1ubuntu26:9.10-1ubuntu16:9.10-1ubuntu26:9.10-1ubuntu56:9.10-1ubuntu6 Show 9 moreShow less6:9.10-1ubuntu76:9.11-2ubuntu16:9.11-2ubuntu26:9.13-0ubuntu0.14.04.16:9.14-0ubuntu0.14.04.16:9.16-0ubuntu0.14.04.16:9.18-0ubuntu0.14.04.16:9.20-0ubuntu0.14.04.16:9.20-0ubuntu0.14.04.1+esm1 | None known |
x264Ubuntu:14.04:LTS | All versions, plus listed versions 2:0.123.2189+git35cf912-1ubuntu12:0.123.2189+git35cf912-1ubuntu22:0.123.2189+git35cf912-1ubuntu32:0.123.2189+git35cf912-1ubuntu42:0.142.2389+git956c8d8-2 | None known |
ffmpegUbuntu:Pro:16.04:LTS | All versions, plus listed versions 7:2.7.2-1build17:2.8.1-1ubuntu17:2.8.2-1ubuntu17:2.8.3-17:2.8.4-1 Show 31 moreShow less7:2.8.4-1ubuntu17:2.8.4-1ubuntu27:2.8.4-1ubuntu37:2.8.4-1ubuntu47:2.8.6-1ubuntu17:2.8.6-1ubuntu27:2.8.8-0ubuntu0.16.04.17:2.8.10-0ubuntu0.16.04.17:2.8.11-0ubuntu0.16.04.17:2.8.14-0ubuntu0.16.04.17:2.8.15-0ubuntu0.16.04.17:2.8.15-0ubuntu0.16.04.1+esm17:2.8.17-0ubuntu0.17:2.8.17-0ubuntu0.1+esm17:2.8.17-0ubuntu0.1+esm27:2.8.17-0ubuntu0.1+esm37:2.8.17-0ubuntu0.1+esm47:2.8.17-0ubuntu0.1+esm57:2.8.17-0ubuntu0.1+esm67:2.8.17-0ubuntu0.1+esm77:2.8.17-0ubuntu0.1+esm87:2.8.17-0ubuntu0.1+esm97:2.8.17-0ubuntu0.1+esm107:2.8.17-0ubuntu0.1+esm117:2.8.17-0ubuntu0.1+esm127:2.8.17-0ubuntu0.1+esm137:2.8.17-0ubuntu0.1+esm147:2.8.17-0ubuntu0.1+esm157:2.8.17-0ubuntu0.1+esm167:2.8.17-0ubuntu0.1+esm177:2.8.17-0ubuntu0.1+esm18 | None known |
x264Ubuntu:16.04:LTS | All versions, plus listed versions 2:0.146.2555+git0c21480-12:0.148.2601+gita0cd7d3-32:0.148.2643+git5c65704-1 | None known |
ffmpegUbuntu:Pro:18.04:LTS | All versions, plus listed versions 7:3.3.4-27:3.3.4-2build37:3.4-2ubuntu27:3.4-47:3.4-4build1 Show 25 moreShow less7:3.4.1-17:3.4.1-1build17:3.4.2-17:3.4.2-1build17:3.4.2-27:3.4.4-0ubuntu0.18.04.17:3.4.6-0ubuntu0.18.04.17:3.4.8-0ubuntu0.27:3.4.11-0ubuntu0.17:3.4.11-0ubuntu0.1+esm17:3.4.11-0ubuntu0.1+esm27:3.4.11-0ubuntu0.1+esm37:3.4.11-0ubuntu0.1+esm47:3.4.11-0ubuntu0.1+esm57:3.4.11-0ubuntu0.1+esm67:3.4.11-0ubuntu0.1+esm77:3.4.11-0ubuntu0.1+esm87:3.4.11-0ubuntu0.1+esm97:3.4.11-0ubuntu0.1+esm107:3.4.11-0ubuntu0.1+esm117:3.4.11-0ubuntu0.1+esm127:3.4.11-0ubuntu0.1+esm137:3.4.11-0ubuntu0.1+esm147:3.4.11-0ubuntu0.1+esm157:3.4.11-0ubuntu0.1+esm16 | None known |
x264Ubuntu:18.04:LTS | All versions, plus listed versions 2:0.148.2795+gitaaa9aa8-12:0.152.2854+gite9a5903-2 | None known |
ffmpegUbuntu:Pro:20.04:LTS | All versions, plus listed versions 7:4.1.4-1build27:4.2.1-27:4.2.1-2ubuntu17:4.2.2-1build17:4.2.2-1ubuntu1 Show 21 moreShow less7:4.2.4-1ubuntu0.17:4.2.4-1ubuntu0.1+esm17:4.2.7-0ubuntu0.17:4.2.7-0ubuntu0.1+esm17:4.2.7-0ubuntu0.1+esm27:4.2.7-0ubuntu0.1+esm37:4.2.7-0ubuntu0.1+esm47:4.2.7-0ubuntu0.1+esm57:4.2.7-0ubuntu0.1+esm67:4.2.7-0ubuntu0.1+esm77:4.2.7-0ubuntu0.1+esm87:4.2.7-0ubuntu0.1+esm97:4.2.7-0ubuntu0.1+esm107:4.2.7-0ubuntu0.1+esm117:4.2.7-0ubuntu0.1+esm127:4.2.7-0ubuntu0.1+esm137:4.2.7-0ubuntu0.1+esm147:4.2.7-0ubuntu0.1+esm157:4.2.7-0ubuntu0.1+esm167:4.2.7-0ubuntu0.1+esm177:4.2.7-0ubuntu0.1+esm18 | None known |
Show 11 moreShow less
| Package | Affected | Fixed |
|---|---|---|
x264Ubuntu:20.04:LTS | All versions, plus listed versions 2:0.155.2917+git0a84d98-2 | None known |
x264Ubuntu:22.04:LTS | All versions, plus listed versions 2:0.160.3011+gitcde9a93-2.12:0.160.3011+gitcde9a93-2.1build12:0.163.3060+git5db6aa6-22:0.163.3060+git5db6aa6-2build1 | None known |
ffmpegUbuntu:Pro:22.04:LTS | All versions, plus listed versions 7:4.4-6ubuntu57:4.4.1-2ubuntu17:4.4.1-3ubuntu17:4.4.1-3ubuntu27:4.4.1-3ubuntu3 Show 19 moreShow less7:4.4.1-3ubuntu57:4.4.2-0ubuntu0.22.04.17:4.4.2-0ubuntu0.22.04.1+esm17:4.4.2-0ubuntu0.22.04.1+esm27:4.4.2-0ubuntu0.22.04.1+esm37:4.4.2-0ubuntu0.22.04.1+esm47:4.4.2-0ubuntu0.22.04.1+esm57:4.4.2-0ubuntu0.22.04.1+esm67:4.4.2-0ubuntu0.22.04.1+esm77:4.4.2-0ubuntu0.22.04.1+esm87:4.4.2-0ubuntu0.22.04.1+esm97:4.4.2-0ubuntu0.22.04.1+esm107:4.4.2-0ubuntu0.22.04.1+esm117:4.4.2-0ubuntu0.22.04.1+esm127:4.4.2-0ubuntu0.22.04.1+esm137:4.4.2-0ubuntu0.22.04.1+esm147:4.4.2-0ubuntu0.22.04.1+esm157:4.4.2-0ubuntu0.22.04.1+esm167:4.4.2-0ubuntu0.22.04.1+esm17 | None known |
x264Ubuntu:24.04:LTS | All versions, plus listed versions 2:0.164.3095+gitbaee400-3build12:0.164.3108+git31e19f9-1 | None known |
ffmpegUbuntu:Pro:24.04:LTS | All versions, plus listed versions 7:6.0-6ubuntu17:6.0-9ubuntu17:6.1-2ubuntu17:6.1-3ubuntu17:6.1-4ubuntu1 Show 17 moreShow less7:6.1-5ubuntu17:6.1.1-1ubuntu17:6.1.1-3ubuntu17:6.1.1-3ubuntu57:6.1.1-3ubuntu5+esm17:6.1.1-3ubuntu5+esm27:6.1.1-3ubuntu5+esm37:6.1.1-3ubuntu5+esm47:6.1.1-3ubuntu5+esm57:6.1.1-3ubuntu5+esm67:6.1.1-3ubuntu5+esm77:6.1.1-3ubuntu5+esm87:6.1.1-3ubuntu5+esm107:6.1.1-3ubuntu5+esm117:6.1.1-3ubuntu5+esm127:6.1.1-3ubuntu5+esm137:6.1.1-3ubuntu5+esm15 | None known |
ffmpegUbuntu:25.10 | All versions, plus listed versions 7:7.1.1-1ubuntu17:7.1.1-1ubuntu27:7.1.1-1ubuntu37:7.1.1-1ubuntu47:7.1.1-1ubuntu4.17:7.1.1-1ubuntu4.2 | None known |
x264Ubuntu:25.10 | All versions, plus listed versions 2:0.164.3108+git31e19f9-2build2 | None known |
ffmpegUbuntu:26.10 | All versions, plus listed versions 7:8.0.1-3ubuntu27:8.1-3ubuntu37:8.1.2-2ubuntu2 | None known |
x264Ubuntu:26.10 | All versions, plus listed versions 2:0.165.3222+gitb35605ac-3build12:0.165.3223+git20250910.0480cb0-1 | None known |
x264Ubuntu:26.04:LTS | All versions, plus listed versions 2:0.164.3108+git31e19f9-2build22:0.165.3222+gitb35605ac-32:0.165.3222+gitb35605ac-3build1 | None known |
ffmpegUbuntu:Pro:26.04:LTS | All versions, plus listed versions 7:7.1.1-1ubuntu47:7.1.2-1ubuntu37:7.1.2-1ubuntu47:7.1.3-1ubuntu17:8.0.1-2ubuntu1 Show 6 moreShow less7:8.0.1-3ubuntu17:8.0.1-3ubuntu27:8.0.1-3ubuntu2+esm17:8.0.1-3ubuntu2+esm37:8.0.1-3ubuntu2+esm47:8.0.1-3ubuntu2+esm5 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-25467 is a critical vulnerability (CVSS 9.8) in x264, published February 18, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.67%, the 52nd percentile. No source names a fixed version.