High severity7.5NVD Advisory· Published May 4, 2026· Updated May 5, 2026

CVE-2026-37459

Description

An integer underflow in FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

github.com/FRRouting/frr/commit/693a2e02687cdc9d16501275e05136edea9650d9nvd

News mentions

Patch Tuesday - May 2026
Rapid7 Blog · May 13, 2026

cvss	0.488
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000