CVE-2013-5527: Cisco IOS

Medium severity, CVSS 5.7. EPSS: 0.8% chance of exploitation in the next 30 days.

The OSPF functionality in Cisco IOS and IOS XE allows remote attackers to cause a denial of service (device reload) via crafted options in an LSA type 11 packet, aka Bug ID CSCui21030.

Affected products

• Cisco IOS: affected versions not specified
• Cisco IOS XE: affected versions not specified

Published 2013-10-10. Last modified 2026-06-16.