CVE-2026-40198 Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass

Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass. packipv6 does not check that uncompressed IPv6 addresses without :: have exactly 8 hex groups. Inputs like "abcd", "1:2:3", or "1:2:3:4:5:6:7" are accepted and produce packed values of...

Cisco IOS XE Common Flow Table (CFT) Malformed IPv6 Message Handling Denial of Service Vulnerability

Cisco IOS is a popular Internet operating system. A security vulnerability in the Cisco IOS XE Common Flow Table CFT feature allows remote attackers to conduct denial-of-service attacks by sending malformed IPv6 messages encapsulating IPv4 UDP...