CVE-2026-67305

Name	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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
freerdp2 (PTS)	bullseye	2.3.0+dfsg1-2+deb11u1	fixed
	bullseye (security)	2.3.0+dfsg1-2+deb11u3	fixed
	bookworm	2.11.7+dfsg1-6~deb12u1	fixed
freerdp3 (PTS)	trixie	3.15.0+dfsg-2.1+deb13u3	fixed
	forky, sid	3.30.0+dfsg-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
freerdp2	source	(unstable)	(not affected)
freerdp3	source	(unstable)	(not affected)

Notes

- freerdp3 <not-affected> (Only affects the FreeRDP Windows client)
- freerdp2 <not-affected> (Only affects the FreeRDP Windows client)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cj9v-h4hq-29jr