CVE-2026-24683

Name	CVE-2026-24683
Description	FreeRDP is a free implementation of the Remote Desktop Protocol. ainput_send_input_event caches channel_callback in a local variable and later uses it without synchronization; a concurrent channel close can free or reinitialize the callback, leading to a use after free. Prior to 3.22.0, This vulnerability is fixed in 3.22.0.
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)	bookworm	2.11.7+dfsg1-6~deb12u1	vulnerable
freerdp3 (PTS)	trixie	3.15.0+dfsg-2.1+deb13u3	fixed
	forky, sid	3.31.1+dfsg-1	fixed

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

Package	Type	Release	Fixed Version
freerdp2	source	(unstable)	(unfixed)
freerdp3	source	trixie	3.15.0+dfsg-2.1+deb13u1
freerdp3	source	(unstable)	3.22.0+dfsg-1

Notes

[bookworm] - freerdp2 <no-dsa> (Minor issue)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-45pf-68pj-fg8q
Fixed by: https://github.com/FreeRDP/FreeRDP/commit/d9ca272dce7a776ab475e9b1a8e8c3d2968c8486 (3.22.0)