RLSA-2026:24347 Important: frr security update

FRRouting is free software that manages TCP/IP based routing protocols. It supports BGP4, OSPFv2, OSPFv3, ISIS, RIP, RIPng, PIM, NHRP, PBR, EIGRP and BFD. Security Fixes: frr: denial of service via crafted FlowSpec component CVE-2026-37457 frr: denial of service via crafted BGP UPDATE message...

PT-2026-45939

Missing input validation in the rfapiRibBi2Ri function rfapi rib.c of 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...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read via the ParseIP6Extended function. An attacker can cause the application to crash or become unresponsive by supplying a specially crafted BGP UPDATE message. Remediation Upgrade github.com/osrg/gobgp/v4/pkg/packet/bgp...

GHSA-8RXH-R2P6-7F2Q GoBGP has Remote Denial of Service (Panic) in UpdatePathAttrs4ByteAs via Malformed BGP UPDATE

Summary A remote Denial of Service DoS vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not...

frr: Incorrect handling of a error in parsing of an invalid section of a BGP update can de-peer a router

A vulnerability was found in FRRouting FRR. This flaw allows a remote attacker to cause a denial of service issue via a crafted BGP update with a corrupted attribute 23 Tunnel Encapsulation...

CVE-2020-3449

A vulnerability in the Border Gateway Protocol BGP additional paths feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to prevent authorized users from monitoring the BGP status and cause the BGP process to stop processing new updates, resulting in a denial of servic...