Security readout for executives and security teams
This is an old denial-of-service issue in Cisco VPN Client 3.5.4 and earlier. A remote attacker could send malformed network traffic that makes the client consume CPU, potentially disrupting a user’s VPN connectivity. The bundle does not show data theft, code execution, or confirmed active exploitation. Exposure is most likely in legacy environments still running Cisco VPN Client 3.5.4 or earlier. Modern VPN clients are unlikely to be affected unless they retain this old client code, which the sources do not establish. Treat this as a legacy-technology cleanup issue unless affected clients are still in production. Business urgency rises where VPN access is mission-critical and old Cisco VPN Client versions remain deployed. Mitigation focus: Inventory endpoints for Cisco VPN Client 3.5.4 or earlier.; Check Cisco guidance for fixed versions or retirement recommendations.; Replace unsupported legacy VPN clients with supported software..
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2002-0853 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
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.