CVE-2026-91945

Name	CVE-2026-91945
Description	FreeRDP versions before 3.31.0 contain an out-of-bounds read vulnerability in smartcard response decoders that fail to validate ATR length fields against fixed inline arrays. Authenticated RDP clients can send oversized ATR lengths in PAKID_CORE_DEVICE_IOCOMPLETION responses to trigger reads past stack or heap objects, causing process termination.
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	fixed
freerdp3 (PTS)	trixie	3.15.0+dfsg-2.1+deb13u3	fixed
	forky, sid	3.32.1+dfsg-1	fixed

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

Package	Type	Release	Fixed Version
freerdp2	source	(unstable)	(not affected)
freerdp3	source	trixie	(not affected)
freerdp3	source	(unstable)	3.31.0+dfsg-1

Notes

[trixie] - freerdp3 <not-affected> (Only affects 3.28 and later)
- freerdp2 <not-affected> (Only affects 3.28 and later)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q65v-4w7q-hx3r
https://www.openwall.com/lists/oss-security/2026/09/01/2