CVEvulnerability
CVE-2026-109951
6.9 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-10-13
- Last modified
- 2026-10-21
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 6.9 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/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
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-125
Description
FreeRDP 3.17.1 before 3.32.0 contains a heap buffer over-read vulnerability in DynvcTrackerHandleCreateBack of the freerdp-proxy DRDYNVC channel handler that allows malicious backend RDP servers to read heap memory out of bounds. Attackers can send a CREATE_REQUEST_PDU whose channel name lacks a NUL byte, causing an unbounded snprintf read that leaks memory into proxy logs or crashes the process.
Affected configurations
• freerdp freerdp (>= 3.17.1 < 3.32.0)
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-g4wg-67xq-8q53 Exploit, Vendor Advisory
- https://www.vulncheck.com/advisories/freerdp-3.17.1-before-3.32.0-heap-buffer-over-read-via-proxy-drdynvc-channel-name Third Party Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-g4wg-67xq-8q53 Exploit, Vendor Advisory