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Libav: FFmpeg before 9.0 has an out-of-bounds read because the copied extradata lacked required padding before GetBitContext-based access in… (CVE-2026-52295)

0
Medium
VulnerabilityCVE-2026-52295gcveosvghsa-53pf-4457-qg7gcve-2026-52295ghsaubuntu-cve-2026-52295ubuntu-pro-14-04-ltsubuntu-pro-16-04-ltsubuntu-pro-18-04-ltsubuntu-pro-20-04-ltsubuntu-pro-22-04-ltsubuntu-pro-24-04-ltsubuntu-26-10ubuntu-pro-26-04-lts
Published: 09/01/2026 (09/01/2026, 18:17:00 UTC)
Source: GCVE Database
Product: libav

Description

A buffer overflow vulnerability exists in Ffmpeg version 7.0 and later in the libavformat/iamf_writer.c component. This flaw can be exploited by an attacker to cause a denial of service (DoS) condition. The vulnerability does not impact confidentiality or integrity but affects availability.

CVSS v3.1

Score 6.2medium

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected software

GitHub Actionsmore threats →ai
ffmpeg/FFmpeg
pkg:github/ffmpeg/FFmpeg
Affected versions
>=7.0
Ubuntu:Pro:14.04:LTSmore threats →ghsa
libav
pkg:deb/ubuntu/libav?arch=source&distro=esm-infra-legacy/trusty
Affected versions
=6:0.8.7-1ubuntu2=6:9.10-1ubuntu1=6:9.10-1ubuntu2=6:9.10-1ubuntu5=6:9.10-1ubuntu6=6:9.10-1ubuntu7=6:9.11-2ubuntu1=6:9.11-2ubuntu2=6:9.13-0ubuntu0.14.04.1=6:9.14-0ubuntu0.14.04.1=6:9.16-0ubuntu0.14.04.1=6:9.18-0ubuntu0.14.04.1=6:9.20-0ubuntu0.14.04.1=6:9.20-0ubuntu0.14.04.1+esm1
Ubuntu:Pro:16.04:LTSmore threats →ghsa
ffmpeg
pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps-legacy/xenial
Affected versions
=7:2.7.2-1build1=7:2.8.1-1ubuntu1=7:2.8.2-1ubuntu1=7:2.8.3-1=7:2.8.4-1=7:2.8.4-1ubuntu1=7:2.8.4-1ubuntu2=7:2.8.4-1ubuntu3=7:2.8.4-1ubuntu4=7:2.8.6-1ubuntu1=7:2.8.6-1ubuntu2=7:2.8.8-0ubuntu0.16.04.1=7:2.8.10-0ubuntu0.16.04.1=7:2.8.11-0ubuntu0.16.04.1=7:2.8.14-0ubuntu0.16.04.1=7:2.8.15-0ubuntu0.16.04.1=7:2.8.15-0ubuntu0.16.04.1+esm1=7:2.8.17-0ubuntu0.1=7:2.8.17-0ubuntu0.1+esm1=7:2.8.17-0ubuntu0.1+esm2=7:2.8.17-0ubuntu0.1+esm3=7:2.8.17-0ubuntu0.1+esm4=7:2.8.17-0ubuntu0.1+esm5=7:2.8.17-0ubuntu0.1+esm6=7:2.8.17-0ubuntu0.1+esm7=7:2.8.17-0ubuntu0.1+esm8=7:2.8.17-0ubuntu0.1+esm9=7:2.8.17-0ubuntu0.1+esm10=7:2.8.17-0ubuntu0.1+esm11=7:2.8.17-0ubuntu0.1+esm12=7:2.8.17-0ubuntu0.1+esm13=7:2.8.17-0ubuntu0.1+esm14=7:2.8.17-0ubuntu0.1+esm15=7:2.8.17-0ubuntu0.1+esm16=7:2.8.17-0ubuntu0.1+esm17=7:2.8.17-0ubuntu0.1+esm18
Ubuntu:Pro:18.04:LTSmore threats →ghsa
ffmpeg
pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps/bionic
Affected versions
=7:3.3.4-2=7:3.3.4-2build3=7:3.4-2ubuntu2=7:3.4-4=7:3.4-4build1=7:3.4.1-1=7:3.4.1-1build1=7:3.4.2-1=7:3.4.2-1build1=7:3.4.2-2=7:3.4.4-0ubuntu0.18.04.1=7:3.4.6-0ubuntu0.18.04.1=7:3.4.8-0ubuntu0.2=7:3.4.11-0ubuntu0.1=7:3.4.11-0ubuntu0.1+esm1=7:3.4.11-0ubuntu0.1+esm2=7:3.4.11-0ubuntu0.1+esm3=7:3.4.11-0ubuntu0.1+esm4=7:3.4.11-0ubuntu0.1+esm5=7:3.4.11-0ubuntu0.1+esm6=7:3.4.11-0ubuntu0.1+esm7=7:3.4.11-0ubuntu0.1+esm8=7:3.4.11-0ubuntu0.1+esm9=7:3.4.11-0ubuntu0.1+esm10=7:3.4.11-0ubuntu0.1+esm11=7:3.4.11-0ubuntu0.1+esm12=7:3.4.11-0ubuntu0.1+esm13=7:3.4.11-0ubuntu0.1+esm14=7:3.4.11-0ubuntu0.1+esm15=7:3.4.11-0ubuntu0.1+esm16
Ubuntu:Pro:20.04:LTSmore threats →ghsa
ffmpeg
pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps/focal
Affected versions
=7:4.1.4-1build2=7:4.2.1-2=7:4.2.1-2ubuntu1=7:4.2.2-1build1=7:4.2.2-1ubuntu1=7:4.2.4-1ubuntu0.1=7:4.2.4-1ubuntu0.1+esm1=7:4.2.7-0ubuntu0.1=7:4.2.7-0ubuntu0.1+esm1=7:4.2.7-0ubuntu0.1+esm2=7:4.2.7-0ubuntu0.1+esm3=7:4.2.7-0ubuntu0.1+esm4=7:4.2.7-0ubuntu0.1+esm5=7:4.2.7-0ubuntu0.1+esm6=7:4.2.7-0ubuntu0.1+esm7=7:4.2.7-0ubuntu0.1+esm8=7:4.2.7-0ubuntu0.1+esm9=7:4.2.7-0ubuntu0.1+esm10=7:4.2.7-0ubuntu0.1+esm11=7:4.2.7-0ubuntu0.1+esm12=7:4.2.7-0ubuntu0.1+esm13=7:4.2.7-0ubuntu0.1+esm14=7:4.2.7-0ubuntu0.1+esm15=7:4.2.7-0ubuntu0.1+esm16=7:4.2.7-0ubuntu0.1+esm17=7:4.2.7-0ubuntu0.1+esm18
Ubuntu:Pro:22.04:LTSmore threats →ghsa
ffmpeg
pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps/jammy
Affected versions
=7:4.4-6ubuntu5=7:4.4.1-2ubuntu1=7:4.4.1-3ubuntu1=7:4.4.1-3ubuntu2=7:4.4.1-3ubuntu3=7:4.4.1-3ubuntu5=7:4.4.2-0ubuntu0.22.04.1=7:4.4.2-0ubuntu0.22.04.1+esm1=7:4.4.2-0ubuntu0.22.04.1+esm2=7:4.4.2-0ubuntu0.22.04.1+esm3=7:4.4.2-0ubuntu0.22.04.1+esm4=7:4.4.2-0ubuntu0.22.04.1+esm5=7:4.4.2-0ubuntu0.22.04.1+esm6=7:4.4.2-0ubuntu0.22.04.1+esm7=7:4.4.2-0ubuntu0.22.04.1+esm8=7:4.4.2-0ubuntu0.22.04.1+esm9=7:4.4.2-0ubuntu0.22.04.1+esm10=7:4.4.2-0ubuntu0.22.04.1+esm11=7:4.4.2-0ubuntu0.22.04.1+esm12=7:4.4.2-0ubuntu0.22.04.1+esm13=7:4.4.2-0ubuntu0.22.04.1+esm14=7:4.4.2-0ubuntu0.22.04.1+esm15=7:4.4.2-0ubuntu0.22.04.1+esm16=7:4.4.2-0ubuntu0.22.04.1+esm17
Ubuntu:Pro:24.04:LTSmore threats →ghsa
ffmpeg
pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps/noble
Affected versions
=7:6.0-6ubuntu1=7:6.0-9ubuntu1=7:6.1-2ubuntu1=7:6.1-3ubuntu1=7:6.1-4ubuntu1=7:6.1-5ubuntu1=7:6.1.1-1ubuntu1=7:6.1.1-3ubuntu1=7:6.1.1-3ubuntu5=7:6.1.1-3ubuntu5+esm1=7:6.1.1-3ubuntu5+esm2=7:6.1.1-3ubuntu5+esm3=7:6.1.1-3ubuntu5+esm4=7:6.1.1-3ubuntu5+esm5=7:6.1.1-3ubuntu5+esm6=7:6.1.1-3ubuntu5+esm7=7:6.1.1-3ubuntu5+esm8=7:6.1.1-3ubuntu5+esm10=7:6.1.1-3ubuntu5+esm11=7:6.1.1-3ubuntu5+esm12=7:6.1.1-3ubuntu5+esm13=7:6.1.1-3ubuntu5+esm15
Ubuntu:26.10more threats →ghsa
ffmpeg
pkg:deb/ubuntu/ffmpeg?arch=source&distro=stonking
Affected versions
=7:8.0.1-3ubuntu2=7:8.1-3ubuntu3=7:8.1.2-2ubuntu2
Ubuntu:Pro:26.04:LTSmore threats →ghsa
ffmpeg
pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps/resolute
Affected versions
=7:7.1.1-1ubuntu4=7:7.1.2-1ubuntu3=7:7.1.2-1ubuntu4=7:7.1.3-1ubuntu1=7:8.0.1-2ubuntu1=7:8.0.1-3ubuntu1=7:8.0.1-3ubuntu2=7:8.0.1-3ubuntu2+esm1=7:8.0.1-3ubuntu2+esm3=7:8.0.1-3ubuntu2+esm4=7:8.0.1-3ubuntu2+esm5

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-53pf-4457-qg7g
Osv Schema Version
1.4.0
Aliases
["CVE-2026-52295"]
Database Specific Severity
MODERATE
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6a9ee1a0acd9273b49e69063

Added to database: 09/07/2026, 16:09:04 UTC

Last enriched: 09/07/2026, 16:13:22 UTC

Last updated: 10/21/2026, 13:22:12 UTC

Views: 96

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