CVE-2026-67290

Description

FreeRDP before 3.29.0 contains a heap out-of-bounds read vulnerability in the TSMF FFmpeg decoder when parsing AVC1 MPEG2VIDEOINFO media types with insufficient ExtraData. Attackers can send malformed media format data from a server to trigger a crash by reading fixed offsets without validating source buffer length.

CVSS Vector

References

• https://github.com/FreeRDP/FreeRDP/commit/8d3b86022f0d71aefa7bd2e466d2d391693a41b3
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-whq8-c3v3-p8v8
• https://www.vulncheck.com/advisories/freerdp-before-heap-out-of-bounds-read-via-tsmf