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CVE Record

CVE-2002-1106: Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.5.1C, does not properly verify...

Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.5.1C, does not properly verify that certificate DN fields match those of the certificate from the VPN Concentrator, which allows remote attackers to conduct man-in-the-middle attacks.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This flaw affects obsolete Cisco VPN Client versions that may fail to properly verify VPN gateway certificate identity. An attacker positioned between the user and VPN concentrator could impersonate the concentrator and intercept VPN connection setup. Business urgency depends on whether these legacy clients still exist on endpoints or images. Exposure is likely limited to environments still running Cisco VPN Client 2.x.x or 3.x before 3.5.1C, including unmanaged endpoints, legacy VDI, or old build images. Treat this as a legacy exposure check rather than a broad emergency. If obsolete Cisco VPN clients remain in use, prioritize removal because VPN trust failures can undermine secure remote access. Mitigation focus: Inventory endpoints for Cisco VPN Client 2.x.x and 3.x before 3.5.1C.; Upgrade affected 3.x clients to 3.5.1C or later per Cisco guidance.; Retire unsupported Cisco VPN Client 2.x deployments where present..

Prepared

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
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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