Bug 2465680 (CVE-2026-37458)

Summary: CVE-2026-37458 frr: denial of service via crafted UPDATE message
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in FRRouting (FRR). An authenticated remote attacker can exploit a missing input validation vulnerability in the MP_REACH_NLRI component by supplying a specially crafted UPDATE message. This issue can lead to a Denial of Service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2468135    
Bug Blocks:    

Description OSIDB Bzimport 2026-05-04 16:01:39 UTC
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.