HIGH 7.5 Microsoft
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.
Microsoft Security Update 2026-May: 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.
Affected Products
- azl3 frr 10.5.0-3 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-37459
- https://nvd.nist.gov/vuln/detail/CVE-2026-37459
This high severity vulnerability with a CVSS score of 7.5 was published on 2026-05-12 via Microsoft. Affected: azl3 frr 10.5.0-3 on Azure Linux 3.0.
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