18 Apr, 2026

Cloudflare misconfiguration behind recent BGP route leak

Cloudflare has shared more details about a recent 25-minute Border Gateway Protocol (BGP) route leak affecting IPv6 traffic, which caused measurable congestion, packet loss, and approximately 12 Gbps of dropped traffic. The BGP system helps route data across different networks called autonomous systems (AS) that send it to destination through smaller networks on the internet. The incident was […]

3 mins read

Cisco IOS XR vulnerability lets attackers crash BGP on routers

Cisco has patched a denial of service (DoS) vulnerability that lets attackers crash the Border Gateway Protocol (BGP) process on IOS XR routers with a single BGP update message. IOS XR runs on the company’s carrier-grade, Network Convergence System (NCS), and Carrier Routing System (CRS) series of routers, such as the ASR 9000, NCS 5500, and 8000 series. This high-severity flaw (tracked […]

3 mins read