CVE-2026-39215

high

Description

Introduced in 2012 inside update_mb_info(), where a logic error allows a subsequent call to write 12 bytes past the allocated buffer.

References

https://depthfirst.com/research/21-zero-days-in-ffmpeg

Details

Source: Mitre, NVD

Published: 2026-06-05

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High