CVE-2011-0935: n/a vulnerability

CVE-2011-0935: The PKI functionality in Cisco IOS 15.0 and 15.1 does not prevent permanent caching of certain public keys,...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 22:14 UTC (UTC+00:00)

Security readout for executives and security teams

This vulnerability affects Cisco IOS PKI behavior in versions 15.0 and 15.1. A public key that was once valid could remain permanently cached after revocation, allowing a remote attacker with a prior IKE peer relationship to bypass authentication. The downstream impact is not specified in the provided sources. Exposure is most likely on Cisco IOS 15.0 or 15.1 deployments using PKI-backed IKE peer relationships where peer keys or certificates may be revoked. The provided affected-product metadata is incomplete. Treat as a high-priority network infrastructure review if legacy Cisco IOS 15.0 or 15.1 devices remain in service. Business urgency depends on PKI/IKE use and revocation history. Mitigation focus: Check Cisco release notes and vendor guidance for CSCth82164-specific fixed versions or workarounds.; Inventory Cisco IOS 15.0 and 15.1 devices using PKI with IKE peer authentication.; Prioritize review of peers whose keys or certificates were revoked after being trusted..

Prepared: Jun 24, 2026, 13:28 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Apr 14, 2011, 16:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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Affected products

Products and packages named in the record

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Weakness

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