CVE-2011-0935

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-04-14 · updated 2026-06-16
Weakness: CWE-310

Description

The PKI functionality in Cisco IOS 15.0 and 15.1 does not prevent permanent caching of certain public keys, which allows remote attackers to bypass authentication and have unspecified other impact by leveraging an IKE peer relationship in which a key was previously valid but later revoked, aka Bug ID CSCth82164, a different vulnerability than CVE-2010-4685.

Affected products

Cisco IOS: 15.0, 15.1

References

http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-2TCAVS.html
http://www.cisco.com/en/US/docs/ios/15_1s/release/notes/15_1s_caveats_15_1_1s.html
http://www.securityfocus.com/bid/47407
http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-2TCAVS.html
http://www.cisco.com/en/US/docs/ios/15_1s/release/notes/15_1s_caveats_15_1_1s.html
http://www.securityfocus.com/bid/47407

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