CVE-2025-32735

Name	CVE-2025-32735
Description	Improper conditions check in some firmware for some Intel(R) NPU Drivers within Ring 1: Device Drivers may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
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
firmware-nonfree (PTS)	bullseye/non-free	20210315-3	vulnerable
	bookworm/non-free-firmware	20230210-5	fixed
	trixie/non-free-firmware	20250410-2	vulnerable
	forky/non-free-firmware	20251111-1	fixed
	sid/non-free-firmware	20260110-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
firmware-nonfree	source	bookworm	(not affected)
firmware-nonfree	source	(unstable)	20251011-1

Notes

[bookworm] - firmware-nonfree <not-affected> (VPU firmware not yet present)
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01403.html
https://gitlab.com/kernel-firmware/linux-firmware/-/commit/d2404284b6ce4ee34ca56351d8741cdc61d81910 (20251011)