CVE-2012-5723: Cisco Asr 1001

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

Cisco ASR 1000 devices with software before 3.8S, when BDI routing is enabled, allow remote attackers to cause a denial of service (device reload) via crafted (1) broadcast or (2) multicast ICMP packets with fragmentation, aka Bug ID CSCub55948.

Affected products

• Cisco Asr 1001
• Cisco Asr 1002
• Cisco Asr 1002-X
• Cisco Asr 1002 Fixed Router
• Cisco Asr 1004
• Cisco Asr 1006
• Cisco Asr 1013
• Cisco Asr 1023 Router
• Cisco IOS XE: up to and including 3.7s\(.1\); version 3.6.0s only; version 3.6.1s only; version 3.6.2s only; version 3.6s(.0) only; version 3.6s(.1) only; …

Published 2014-04-24. Last modified 2026-06-16.