Heap-based buffer overflow in libavformat/rtmppkt.c in FFmpeg before 2.8.10, 3.0.x before 3.0.5, 3.1.x before 3.1.6, and 3.2.x before 3.2.2 allows remote attackers to execute arbitrary code by leveraging failure to check for RTMP packet size mismatches.
Severity
CVSS 3.0
9.8 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
7.5% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-31)