CVE-2026-67305

High

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.

SeverityHigh

CVSS8.8

Exploit probability—

ProductFreerdp

PublishedAug 1, 2026

First seenAug 1, 2026

Weakness typeCWE-122CWE-122

How to fix

Update

freerdp freerdp3.29.0 or later

Vendor advisories

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cj9v-h4hq-29jr

Affected products

Product	Affected versions	Fixed in
freerdp freerdp	v < 3.29.0	3.29.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.