CVE-2026-85090
mediumpriority · track · 22EPSS 0.003 · 20 %ileDEUSEPSS · scored 2026-10-23
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.3–5.4
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (7)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3057FreeRDP: Mehrere Schwachstellen ermöglichen nicht spezifizierten AngriffDeutsch2026-08-26csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in FreeRDP ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
sources
Which sources assert this record, and when.
references (6) nvd
External citations — patches, advisories, analysis.
- https://github.com/FreeRDP/FreeRDPProduct
- https://github.com/FreeRDP/FreeRDP/blob/3.30.0/libfreerdp/primitives/prim_YUV.cProduct
- https://github.com/FreeRDP/FreeRDP/commit/d0a481cb74ab57bca24791fe11b89464a332d3f1Patch
- https://github.com/FreeRDP/FreeRDP/releases/tag/3.31.0ProductRelease Notes
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-57h7-vw2f-2f9xExploitMitigationVendor Advisory
- https://www.vulncheck.com/advisories/freerdp-before-3.31.0-heap-out-of-bounds-read-via-avc444PatchRelease NotesThird Party Advisory
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