CVE-2026-52295CWE-120CWE-125

CVE-2026-52295

Low · published September 1, 2026

CVSS v3.1
2.9
EPSS
0%
Percentile
6.8
In the wild
Unconfirmed
What it is

FFmpeg before 9.0 has an out-of-bounds read because the copied extradata lacked required padding before GetBitContext-based access in libavformat/iamf_writer.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
0.00176 · 6.8th percentile
Weaknesses
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'); CWE-125 · Out-of-bounds Read
Published
2026-09-01T22:17Z
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/8439e0203744a30d280668fcd086f74ed5001da1 · [email protected]https://github.com/Kenan-Kamel/VulnerabilitiesReference/tree/main/FFmpeg/ExtradataPadding · [email protected]
EPSS history
Timeline
  • 03 SEP 03:30Z
    EPSS moved — → 0%
    epss
  • 01 SEP 00:00Z
    Buffer Overflow vulnerability in Ffmpeg v.7.0 and after allows an attacker to cause a denial of service via the libavformat/iamf_writer.c component
    cvelistv5