Medium severity5.4NVD Advisory· Published Sep 3, 2026
CVE-2026-85090
CVE-2026-85090
Description
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.
Affected products
1Patches
Vulnerability mechanics
References
5- github.com/FreeRDP/FreeRDP/blob/3.30.0/libfreerdp/primitives/prim_YUV.cnvd
- github.com/FreeRDP/FreeRDP/commit/d0a481cb74ab57bca24791fe11b89464a332d3f1nvd
- github.com/FreeRDP/FreeRDP/releases/tag/3.31.0nvd
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-57h7-vw2f-2f9xnvd
- www.vulncheck.com/advisories/freerdp-before-3.31.0-heap-out-of-bounds-read-via-avc444nvd
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