CVE-2026-37459

CVSS 7.5 HIGHEPSS 0.4%CWE-191 CWE-400

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

04 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

n/a · n/a

References

https://access.redhat.com/errata/RHSA-2026:24347 https://access.redhat.com/errata/RHSA-2026:24370 https://access.redhat.com/security/cve/CVE-2026-37459 https://bugzilla.redhat.com/show_bug.cgi?id=2466513 https://github.com/FRRouting/frr/commit/693a2e02687cdc9d16501275e05136edea9650d9 https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-37459.json