CVE-2010-0579: Cisco IOS

High severity, CVSS 7.8. EPSS: 2.6% chance of exploitation in the next 30 days.

The SIP implementation in Cisco IOS 12.3 and 12.4 allows remote attackers to cause a denial of service (device reload) via a malformed SIP message, aka Bug ID CSCtb93416, the "SIP Message Handling Denial of Service Vulnerability."

Affected products

• Cisco IOS: version 12.3jk only; version 12.3t only; version 12.3xd only; version 12.3xf only; version 12.3xg only; version 12.3xi only; …

Published 2010-03-25. Last modified 2026-06-16.