Cisco Fixes Critical DoS Vulnerability in IOS XR Routers
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Cisco has addressed a denial of service (DoS) vulnerability, listed under the identifier CVE-2025-20115, which allows an unauthenticated, remote attacker to crash the Border Gateway Protocol (BGP) process on IOS XR routers. This flaw can be exploited by sending a single malicious BGP packet. The impact of this vulnerability is the disruption of the BGP process, which can lead to service interruptions on networks using these routers.