CVE-2009-2862: Cisco IOS

Medium severity, CVSS 4.3. EPSS: 2.3% chance of exploitation in the next 30 days.

The Object Groups for Access Control Lists (ACLs) feature in Cisco IOS 12.2XNB, 12.2XNC, 12.2XND, 12.4MD, 12.4T, 12.4XZ, and 12.4YA allows remote attackers to bypass intended access restrictions via crafted requests, aka Bug IDs CSCsx07114, CSCsu70214, CSCsw47076, CSCsv48603, CSCsy54122, and CSCsu50252.

Affected products

• Cisco IOS: version 12.2xnb only; version 12.2xnc only; version 12.2xnd only; version 12.4md only; version 12.4t only; version 12.4xz only; …

Published 2009-09-28. Last modified 2026-06-16.