FFmpeg before 9.0 has an out-of-bounds read because the copied extradata lacked required padding before GetBitContext-based access in libavformat/iamf_writer.c.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00123.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
FFmpeg FFmpeg unaffected
Version Status Constraints
0 affected < 9.0

No data.

No data.

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Vendors Products
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Ffmpeg Subscribe

Project Subscriptions

Vendors Products
Ffmpeg Subscribe
Ffmpeg Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22988 cve-icon cve-icon
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/8439e0203744a30d280668fcd086f74ed5001da1 cve-icon cve-icon
https://github.com/Kenan-Kamel/VulnerabilitiesReference/tree/main/FFmpeg/ExtradataPadding cve-icon cve-icon
History

Sun, 13 Sep 2026 22:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
CPEs cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

 cvssV3_1

{'score': 2.9, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}

Sun, 13 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Description Buffer Overflow vulnerability in Ffmpeg v.7.0 and after allows an attacker to cause a denial of service via the libavformat/iamf_writer.c component FFmpeg before 9.0 has an out-of-bounds read because the copied extradata lacked required padding before GetBitContext-based access in libavformat/iamf_writer.c.

Mon, 07 Sep 2026 16:00:00 +0000

Type Values Removed Values Added
Title Denial of Service via Buffer Overflow in FFmpeg IAMF Writer

Mon, 07 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
Title Denial of Service via Buffer Overflow in FFmpeg IAMF Writer
Weaknesses CWE-119

Mon, 07 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-120
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 02 Sep 2026 02:45:00 +0000

Type Values Removed Values Added
Title Denial of Service via Buffer Overflow in FFmpeg IAMF Writer
Weaknesses CWE-119

Wed, 02 Sep 2026 00:30:00 +0000

Type Values Removed Values Added
First Time appeared Ffmpeg
Ffmpeg ffmpeg
Vendors & Products Ffmpeg
Ffmpeg ffmpeg

Tue, 01 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Description Buffer Overflow vulnerability in Ffmpeg v.7.0 and after allows an attacker to cause a denial of service via the libavformat/iamf_writer.c component
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-13T21:58:20.581Z

Reserved: 2026-06-08T00:00:00.000Z

Link: CVE-2026-52295

cve-icon Vulnrichment

Updated: 2026-09-07T10:58:19.101Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-01T18:17:43.940

Modified: 2026-09-13T22:16:59.693

Link: CVE-2026-52295

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-07T15:45:17Z

Weaknesses