HIGH

CVE-2026-67305

Freerdp Freerdp 2026-08-01 CVSS v3.1

CVSS

8.8

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.

Weakness (CWE)

CWE-122 Heap-based Buffer Overflow

EPSS Score

0.55%

Probability of exploitation in next 30 days

44.6th percentile

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cj9v-h4hq-29jr Exploit, Vendor Advisory https://www.vulncheck.com/advisories/freerdp-windows-client-before-heap-buffer-overflow-via-cliprdr Third Party Advisory

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

Back to CVE