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
freerdp: freerdp
References7
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-57h7-vw2f-2… ExploitMitigationVendor Advisory
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-57h7-vw2f-2… ExploitMitigationVendor Advisory
- github.com/FreeRDP/FreeRDP/commit/d0a481cb74ab57bca24791fe11b89… Patch
- www.vulncheck.com/advisories/freerdp-before-3.31.0-heap-out-of-… PatchRelease NotesThird Party Advisory
- github.com/FreeRDP/FreeRDP Product
- github.com/FreeRDP/FreeRDP/blob/3.30.0/libfreerdp/primitives/pr… Product
- github.com/FreeRDP/FreeRDP/releases/tag/3.31.0 ProductRelease Notes
Metrics
- CVSS 3.1
-
5.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L - CVSS 4.0
-
5.3
MEDIUM
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 0% percentile: 21 · as of 3 November 2026
- CWE
- CWE-125
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.