VULNERABILITY INTELLIGENCE

CVE-2026-75142

CVSS score7.8 HIGH
EPSS probability0.20%
CISA KEVNot currently listed
Published2026-08-19
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

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.

Weakness classification

  • disclosure@vulncheck.com: CWE-121

Primary references