High severity8.8NVD Advisory· Published Aug 1, 2026· Updated Sep 8, 2026
CVE-2026-67305
CVE-2026-67305
Description
FreeRDP Windows client before 3.29.0 contains a heap buffer overflow vulnerability in the clipboard virtual channel when processing CLIPRDR_FILE_CONTENTS_RESPONSE PDUs without validating the server-provided size against the destination buffer. A malicious RDP server can send a response with a data payload significantly larger than requested, causing arbitrary heap memory corruption that may enable remote code execution when a user performs a paste operation.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
2- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cj9v-h4hq-29jrnvdExploitVendor Advisory
- www.vulncheck.com/advisories/freerdp-windows-client-before-heap-buffer-overflow-via-cliprdrnvdThird Party Advisory
News mentions
1- Freerdp: 21 Vulnerabilities Disclosed Together, Patch Released in 3.29.0Vypr Intelligence · Aug 2, 2026