CVE-2014-3343: Cisco IOS XR

Medium severity, CVSS 4.3. EPSS: 2.2% chance of exploitation in the next 30 days.

Cisco IOS XR 5.1 allows remote attackers to cause a denial of service (DHCPv6 daemon crash) via a malformed DHCPv6 packet, aka Bug ID CSCuo59052.

Affected products

• Cisco IOS XR: version 5.1.0 only

Published 2014-09-10. Last modified 2026-06-17.