{"schemaVersion":3,"id":"CVE-2025-20144","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability in the hybrid access control list (ACL) processing of IPv4 packets in Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL.\n\nThis vulnerability is due to incorrect handling of packets when a specific configuration of the hybrid ACL exists. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to bypass a configured ACL on the affected device.\nFor more information, see the  section of this advisory.\nCisco has released software updates that address this vulnerability. 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