Description
FreeRDP before 3.32.0 contains a heap buffer overflow vulnerability in persistent_cache_read_entry_v3 that allows local attackers to corrupt memory by supplying a crafted v3 persistent cache file. Attackers can set large width and height values that wrap the size calculation in persist_cache_get_data, causing fread to overflow an undersized buffer and potentially execute code.
Affected products
freerdp: freerdp
References4
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-945c-qq5h-j… ExploitVendor Advisory
- github.com/programmervuln/freerdp-persistent-cache-v3-heapoverf… ExploitThird Party Advisory
- github.com/programmervuln/freerdp-persistent-cache-v3-heapoverf… ExploitThird Party Advisory
- www.vulncheck.com/advisories/freerdp-before-3.32.0-heap-buffer-… Third Party Advisory
Metrics
- CVSS 3.1
-
7.3
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - CVSS 4.0
-
7.0
HIGH
Score source: CNA
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/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: 9 · as of 10 November 2026
- CWE
- CWE-122
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.