Cisco IOS XR on ASR 9000 Series Routers: Crafted IPv4 Packets Cause Line Card DoS (CVE-2026-76505)
Cisco disclosed CVE-2026-76505, a High-rated vulnerability in the IPv4 packet processing of Cisco IOS XR Software on Cisco ASR 9000 and 9900 Series routers and ASR 9902/9903 Compact High-Performance Routers. An unauthenticated, remote attacker can send crafted IPv4 packets that trigger network processor (NP) errors, resetting or shutting …