CVE-2015-0638: Cisco IOS

High severity, CVSS 7.1. EPSS: 1.7% chance of exploitation in the next 30 days.

Cisco IOS 12.2, 12.4, 15.0, 15.2, and 15.3, when a VRF interface is configured, allows remote attackers to cause a denial of service (interface queue wedge) via crafted ICMPv4 packets, aka Bug ID CSCsi02145.

Affected products

• Cisco IOS: version 12.2(33)ird1 only; version 12.2(33)ire3 only; version 12.2(33)sxi4b only; version 12.2(44)sq1 only; version 12.4(25e)jam1 only; version 12.4(25e)jap1m only; …

Published 2015-03-26. Last modified 2026-06-17.