FreeRDP 3.10.0 through 3.32.2 contains a heap buffer overflow in the WinPR png_write_data callback that writes past the buffer after a realloc failure. A malicious RDP clipboard peer can supply a large CF_DIB image that triggers out-of-bounds memcpy during PNG conversion, causing a client crash.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-wf3x-658c-52m5 Exploit, Vendor Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-wf3x-658c-52m5 Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 4
- Cpes+1 CPE criteria (now 1)NVD modified 2026-10-27 19:05
- StatusUndergoing Analysis → AnalyzedNVD modified 2026-10-27 19:05
- StatusAwaiting Analysis → Undergoing AnalysisNVD modified 2026-10-18 12:17
- First seenCVSS 6.0NVD modified 2026-10-14 20:11
Affected (CPE criteria) 1
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
References 3
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-wf3x-658c-52m5 Exploit, Vendor Advisory
- https://www.vulncheck.com/advisories/freerdp-3.10.0-through-3.32.2-heap-buffer-overflow-in-winpr-png-conversion Third Party Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-wf3x-658c-52m5 Exploit, Vendor Advisory