CVE-2011-3277

CVE-2011-3277 affects Cisco IOS NAT implementation (12.1–12.4, 15.0–15.1) and IOS-XE 3.1.xSG. The issue arises from NAT handling of H.323 traffic on TCP/1720, enabling remote attackers to cause a DoS (device reload). Cisco’s advisory notes multiple NAT DoS vectors (including H.323), with mitigati...