CVE-2014-3377: Cisco IOS XR

Medium severity, CVSS 4.0. EPSS: 1.4% chance of exploitation in the next 30 days.

snmpd in Cisco IOS XR 5.1 and earlier allows remote authenticated users to cause a denial of service (process reload) via a malformed SNMPv2 packet, aka Bug ID CSCun67791.

Affected products

• Cisco IOS XR: version 2.0 only; version 3.0 only; version 3.0.1 only; version 3.1 only; version 3.1.0 only; version 3.2 only; …

Published 2014-09-20. Last modified 2026-06-17.