CVE-2026-37459: 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.
Overview
- Severity
- High (CVSS 7.5)
- CVSS Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-May
- Released
- 2026-05-09
- Last Updated
- 2026-05-19
- EPSS Score
- 0.26% (percentile: 17.5%)
Affected Products (1)
Open Source Software
- azl3 frr 10.5.0-3 on Azure Linux 3.0
Revision History
- 2026-05-09: Information published.
- 2026-05-19: Information published.