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CVE-2002-1108: Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.6(Rel), when configured with al...

Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.6(Rel), when configured with all tunnel mode, can be forced into acknowledging a TCP packet from outside the tunnel.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This flaw affects very old Cisco VPN Client versions when configured to force all traffic through the VPN tunnel. An outside TCP packet could still trigger an acknowledgement from the client, weakening the expected tunnel-only isolation. The bundle does not provide CVSS, CWE, impact depth, or active exploitation evidence. Exposure is limited to environments still running Cisco VPN Client 2.x.x or 3.x before 3.6(Rel), specifically with all tunnel mode enabled. Modern environments are unlikely to use these legacy clients, but older managed endpoints, archives, or isolated networks should be checked. Moderate operational priority if legacy Cisco VPN Client remains in use; otherwise low immediate urgency. The main business concern is old endpoint VPN software not enforcing expected tunnel isolation. Mitigation focus: Inventory endpoints for Cisco VPN Client 2.x.x and 3.x before 3.6(Rel).; Remove or upgrade affected clients according to Cisco vendor guidance.; Prioritize systems configured for all tunnel mode..

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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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