CVE-2026-125238

MEDIUM 5.5

FFmpeg through 9.0.2 Reachable Assertion in libxevd EVC Decoder Wrapper

CVSS Score

5.5

EPSS Score

0.0%

EPSS Percentile

0th

FFmpeg through 9.0.2 contains a reachable assertion vulnerability in libxevd_receive_frame() in libavcodec/libxevd.c that returns success when an access unit produces no frame. Attackers can supply a crafted EVC file with truncated or picture-less access units to trigger the av_assert0() on frame->private_ref, aborting any decoding application.

CWE	CWE-617
Vendor	ffmpeg
Product	ffmpeg
Published	Nov 9, 2026
Last Updated	Nov 9, 2026

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CVSS v3 Breakdown

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

FFmpeg / FFmpeg

7.0 ≤ 9.0.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

code.ffmpeg.org: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25416 github.com: https://github.com/FFmpeg/FFmpeg/commit/33b0107a04b9ec361d76ae148cb6683964f88073 github.com: https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/libxevd.c#L448 github.com: https://github.com/FFmpeg/FFmpeg vulncheck.com: https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-reachable-assertion-in-libxevd-evc-decoder-wrapper

Credits

Joshua Rogers (AISLE Research) Michael Niedermayer