High severity · published Aug 1, 2026
CVE-2026-67290
FreeRDP before 3.29.0 Heap Out-of-Bounds Read via TSMF
7.5
CVSS
0.6%
EPSS
No
On KEV
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
FreeRDP · FreeRDP
before 3.29.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-67290
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-67290
Patch
https://github.com/FreeRDP/FreeRDP/commit/8d3b86022f0d71aefa7bd2e466d2d391693a41b3
Vendor Advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-whq8-c3v3-p8v8
Patch
https://www.vulncheck.com/advisories/freerdp-before-heap-out-of-bounds-read-via-tsmf
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