Security readout for executives and security teams
This is a legacy Cisco VPN 3000 Concentrator denial-of-service issue. An unauthenticated remote attacker could crash the device by submitting an overly long username or password to the HTML login page, disrupting VPN availability. Exposure is likely limited to organizations still operating Cisco VPN 3000 Concentrator 2.2.x or 3.x before 3.5.3, especially if the HTML login interface is reachable from the internet or untrusted networks. Treat as a targeted availability risk for legacy VPN infrastructure. Prioritize if the device still supports business remote access or internet-facing authentication. Otherwise, track as legacy cleanup. Mitigation focus: Identify and retire any Cisco VPN 3000 Concentrator 2.2.x deployments.; Upgrade affected 3.x systems to 3.5.3 or later per vendor guidance.; Restrict HTML login access to trusted management networks where possible..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Credential and access behavior lookup
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Open ATT&CK lookupCVE-2002-1100 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.