CVE-2010-3901: n/a vulnerability

CVE-2010-3901: OpenConnect before 2.25 does not properly validate X.509 certificates, which allows man-in-the-middle attac...

OpenConnect before 2.25 does not properly validate X.509 certificates, which allows man-in-the-middle attackers to spoof arbitrary AnyConnect SSL VPN servers via a crafted server certificate that (1) does not correspond to the server hostname or (2) is presented in circumstances involving a missing --cafile configuration option.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 16:13 UTC (UTC+00:00)

Security readout for executives and security teams

OpenConnect versions before 2.25 could trust the wrong SSL VPN server certificate. A person positioned between a user and the VPN server could impersonate an AnyConnect-compatible VPN endpoint, risking credential or traffic interception if vulnerable clients are still used. Exposure is limited to environments still using OpenConnect before 2.25, especially legacy VPN clients or unmanaged endpoints with old packages or incomplete CA configuration. Current exposure cannot be confirmed from the bundle. Treat as high priority only where legacy OpenConnect is still present. VPN client trust failures can expose remote-access credentials and traffic, but the evidence bundle does not show known active exploitation. Mitigation focus: Upgrade OpenConnect clients to version 2.25 or later.; Review vendor guidance and distribution advisories for supported fixed builds.; Ensure VPN client configurations use an appropriate CA trust source..

Prepared: Jun 28, 2026, 01:40 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 12, 2010, 21:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

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