CVE-2026-37458

Name	CVE-2026-37458
Description	Missing input validation in the MP_REACH_NLRI component of FRRouting (FRR) stable/10.0 to stable/10.6 allows authenticated attackers to cause a Denial of Service (DoS) via supplying a crafted UPDATE message.
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
frr (PTS)	bullseye	7.5.1-1.1+deb11u2	vulnerable
	bullseye (security)	7.5.1-1.1+deb11u4	vulnerable
	bookworm, bookworm (security)	8.4.4-1.1~deb12u1	vulnerable
	trixie	10.3-3	vulnerable
	forky, sid	10.6.1-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
frr	source	(unstable)	(unfixed)

https://github.com/FRRouting/frr/commit/8102a8aeceb9f86fdfe1f80cd77080522bab69c8