CVE-2026-85090

EUVD-2026-70300
FreeRDP before 3.31.0 contains a heap out-of-bounds read vulnerability in the general_ChromaV1ToYUV444 function during AVC444 chroma plane reconstruction. A malicious RDP server can craft a RFX_AVC444_BITMAP_STREAM with specific frame geometry to trigger an out-of-bounds memory read past the allocated luma plane.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
5.4 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 22.29%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
freerdpfreerdp
3.0.0 ≤
𝑥
< 3.31.0
CNA
Debian logo
Debian Releases
Debian Product
Codename
freerdp2
bookworm
vulnerable
freerdp3
forky
3.31.0+dfsg-1
fixed
sid
3.31.1+dfsg-1
fixed
trixie
vulnerable
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://github.com/FreeRDP/FreeRDP
https://github.com/FreeRDP/FreeRDP/blob/3.30.0/libfreerdp/primitives/prim_YUV.c
https://github.com/FreeRDP/FreeRDP/commit/d0a481cb74ab57bca24791fe11b89464a332d3f1
https://github.com/FreeRDP/FreeRDP/releases/tag/3.31.0
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-57h7-vw2f-2f9x
https://www.vulncheck.com/advisories/freerdp-before-3.31.0-heap-out-of-bounds-read-via-avc444