CVE-2026-67290

8.7 highEPSS 0.6%

High (8.7) in freerdp freerdp. EPSS 0.6% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

8.7 high

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-31)
CWE: CWE-125
Published: 2026-08-01
Modified: 2026-09-29
Record from: the NVD, synced 2026-10-19

Affected

freerdp:freerdp

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

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