CVE-2026-75142
High · 7.8CVSS
7.8
EPSS
0.2%
Published
Aug 19, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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