CVE-2015-4223: Cisco IOS XR

Medium severity, CVSS 5.0. EPSS: 2.5% chance of exploitation in the next 30 days.

Cisco IOS XR 5.1.3 allows remote attackers to cause a denial of service (process reload) via crafted MPLS Label Distribution Protocol (LDP) packets, aka Bug ID CSCuu77478.

Affected products

• Cisco IOS XR: version 5.1.3 only

Published 2015-06-25. Last modified 2026-06-17.