Stack-based Buffer Overflow Affecting libpostproc55_9 package, versions <4.4.8-150400.3.75.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.2% (9th percentile)

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  • Snyk IDSNYK-SLES154-LIBPOSTPROC559-19854333
  • published16 Sept 2026
  • disclosed14 Sept 2026

Introduced: 14 Sep 2026

CVE-2026-75142  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 libpostproc55_9 to version 4.4.8-150400.3.75.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libpostproc55_9 package and not the libpostproc55_9 package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

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 Base Scores

version 3.1