Description
FFmpeg before 8.1.3 and 9.x before 9.0.2 contains an out-of-bounds read vulnerability in put_vector() in libavcodec/vorbisenc.c when NaN samples leave the codebook entry at -1. Attackers can supply audio with NaN float samples to the native Vorbis encoder, causing heap reads before arrays that crash the application or leak adjacent heap memory into output.
Published: 2026-11-09
Score: 5.8 Medium
EPSS: n/a
KEV: No
AI Analysis

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Remediation

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Advisories

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History

Mon, 09 Nov 2026 19:15:00 +0000

Type Values Removed Values Added
Description FFmpeg before 8.1.3 and 9.x before 9.0.2 contains an out-of-bounds read vulnerability in put_vector() in libavcodec/vorbisenc.c when NaN samples leave the codebook entry at -1. Attackers can supply audio with NaN float samples to the native Vorbis encoder, causing heap reads before arrays that crash the application or leak adjacent heap memory into output.
Title FFmpeg before 8.1.3 and 9.x before 9.0.2 Out-of-Bounds Read in Vorbis Encoder
First Time appeared Ffmpeg
Ffmpeg ffmpeg
Weaknesses CWE-125
CPEs cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Vendors & Products Ffmpeg
Ffmpeg ffmpeg
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:H'}

cvssV4_0

{'score': 5.8, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

Ffmpeg Ffmpeg
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-09T19:11:40.844Z

Reserved: 2026-11-09T18:15:22.207Z

Link: CVE-2026-125228

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-09T19:17:00.540

Modified: 2026-11-09T19:17:00.540

Link: CVE-2026-125228

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses