VULNERABILITY INTELLIGENCE
CVE-2026-75141
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 acf5d7c contains a heap buffer overflow in the hvcC box writer. When writing an HEVC configuration record with more NAL units of a single type than the count field can represent, the NAL unit count overflows, causing a heap buffer overflow. A crafted HEVC input file triggers the overflow during muxing.
Weakness classification
- disclosure@vulncheck.com: CWE-122