CVE-2026-125193

MEDIUM 6.1

FFmpeg through 9.0.2 Out-of-Bounds Read via bitpacked_decode_uyvy422()

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

FFmpeg through 9.0.2 contains an out-of-bounds read vulnerability in bitpacked_decode_uyvy422() in libavcodec/bitpacked_dec.c because it never verifies packets hold width * height * 2 bytes. Attackers can supply truncated bitpacked UYVY422 packets via crafted SDP/RFC 4175 RTP sessions or raw input to crash applications or expose adjacent heap memory.

CWE	CWE-125
Vendor	ffmpeg
Product	ffmpeg
Published	Nov 9, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Affected Versions

FFmpeg / FFmpeg

0 ≤ 9.0.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

code.ffmpeg.org: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25702 github.com: https://github.com/FFmpeg/FFmpeg/commit/f1205ee01893a3b509d96b5fe3aeda755c517973 github.com: https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/bitpacked_dec.c#L52 github.com: https://github.com/FFmpeg/FFmpeg vulncheck.com: https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-out-of-bounds-read-via-bitpacked-decode-uyvy422

Credits

Joshua Rogers (AISLE Research) Michael Niedermayer