CVE-2026-37458

medium

Published 2026-05-04 · Modified 2026-05-11

CVSS v3

6.5

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v2

—

VIR risk

6.5

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.

Predictions

Exploit likelihood

75%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-37458.html

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-37458

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://github.com/FRRouting/frr/commit/8102a8aeceb9f86fdfe1f80cd77080522bab69c8

OS impact

OS	Version	Status	Fixed in
debian	bookworm	affected
debian	bullseye	affected
debian	forky	fixed	`10.6.0-2`
debian	sid	fixed	`10.6.0-2`
debian	trixie	affected
sles		affected

Application impact

Vendor	Product	Versions	Fixed
frrouting	frrouting	`{"startIncluding":"10.0","endIncluding":"10.6.0"}`

References

CWEs

CWE-20

Verify integrity in audit chain (admin only). AS-IS.