CVE-2007-0480: Cisco IOS Transmission Control Protocol

High severity, CVSS 10.0. EPSS: 9.3% chance of exploitation in the next 30 days.

Cisco IOS 9.x, 10.x, 11.x, and 12.x and IOS XR 2.0.x, 3.0.x, and 3.2.x allows remote attackers to cause a denial of service or execute arbitrary code via a crafted IP option in the IP header in a (1) ICMP, (2) PIMv2, (3) PGM, or (4) URD packet.

Affected products

• Cisco IOS Transmission Control Protocol: version 12 only; version 12.0da only; version 12.0db only; version 12.0dc only; version 12.0s only; version 12.0sc only; …

Published 2007-01-25. Last modified 2026-06-16.