CVE-2026-52296CWE-125

CVE-2026-52296

Low · published September 14, 2026

CVSS v3.1
2.9
EPSS
0%
Percentile
4.6
In the wild
Unconfirmed
What it is

FFmpeg before 9.0 has an out-of-bounds read because of missing required padding in WMA extradata allocation paths in libavcodec/wmaenc.c.

The record
Technical detail
CVSS v3.1
2.9 · LOW
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00158 · 4.6th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-09-14T02:17Z
Affected products (1)
ProductVersionsFixed in
ffmpeg/ffmpeg< 9.09.0
References (3)
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22988 · [email protected]https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/23227a444de4a8f7696f46660cdd044b460f7e47 · [email protected]https://github.com/Kenan-Kamel/VulnerabilitiesReference/tree/main/FFmpeg/ExtradataPadding · [email protected]
EPSS history
Timeline
  • 15 SEP 03:21Z
    EPSS moved — → 0%
    epss
  • 13 SEP 00:00Z
    FFmpeg before 9.0 has an out-of-bounds read because of missing required padding in WMA extradata allocation paths in libavcodec/wmaenc.c
    cvelistv5