CVE-2010-4685: Cisco IOS

Medium severity, CVSS 4.0. EPSS: 0.8% chance of exploitation in the next 30 days.

Cisco IOS before 15.0(1)XA1 does not clear the public key cache upon a change to a certificate map, which allows remote authenticated users to bypass a certificate ban by connecting with a banned certificate that had previously been valid, aka Bug ID CSCta79031.

Affected products

• Cisco IOS: before 15.0\(1\)xa1 (fixed in 15.0\(1\)xa1)

Published 2011-01-07. Last modified 2026-06-16.