FreeRDP before 3.32.0 contains a heap buffer overflow vulnerability in persistent_cache_read_entry_v2 that allows local attackers to corrupt heap memory via integer wraparound in bitmap size calculation. Attackers can craft a persistent cache v2 file with oversized width and height values that causes mismatched entry size accounting and fixed 16 KiB reads, leading to crashes or code execution when loaded.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-26cc-wjh8-hjw6 Exploit, Vendor Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-26cc-wjh8-hjw6 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 2026-10-20 15:34
- StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-20 15:34
- StatusReceived → Awaiting AnalysisNVD modified 2026-10-16 14:52
- First seenCVSS 7.0NVD modified 2026-10-16 03:18
Affected (CPE criteria) 1
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
References 3
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-26cc-wjh8-hjw6 Exploit, Vendor Advisory
- https://www.vulncheck.com/advisories/freerdp-before-3.32.0-heap-buffer-overflow-via-persistent-cache-v2-parser Third Party Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-26cc-wjh8-hjw6 Exploit, Vendor Advisory