Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freerdp | Freerdp | < 3.31.0 |
Related Weaknesses (CWE)
References
- 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/d0a481cb74ab57bca24791fe11b89464a332d3Patch
- 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-rePatchRelease NotesThird Party Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-57h7-vw2f-2f9xExploitMitigationVendor Advisory
FAQ
What is CVE-2026-85090?
CVE-2026-85090 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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...
How severe is CVE-2026-85090?
CVE-2026-85090 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-85090?
Check the references section above for vendor advisories and patch information. Affected products include: Freerdp Freerdp.