CVE-2026-75142

FFmpeg before commit 9d786e4 contains a stack buffer overflow in the MPEG-PS muxer (libavformat/mpegenc.c). When muxing input with more streams than the muxer's fixed-size stack buffer accommodates, the buffer is overflowed. A crafted input with an excessive number of streams triggers the overflow during MPEG-PS muxing.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/9d786e4b5e9b8482651928574de33772aeee7be1
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24087
https://www.vulncheck.com/advisories/ffmpeg-stack-buffer-overflow-in-mpeg-ps-muxer-via-mpegenc-c

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-19 17:21

Updated : 2026-09-09 20:36

NVD link : CVE-2026-75142

Mitre link : CVE-2026-75142

CVE.ORG link : CVE-2026-75142

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

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