CVE-2013-1100: Cisco IOS

Medium severity, CVSS 5.4. EPSS: 1.5% chance of exploitation in the next 30 days.

The HTTP server in Cisco IOS on Catalyst switches does not properly handle TCP socket events, which allows remote attackers to cause a denial of service (device crash) via crafted packets on TCP port (1) 80 or (2) 443, aka Bug ID CSCuc53853.

Affected products

• Cisco IOS: affected versions not specified

Published 2013-02-13. Last modified 2026-06-16.