Security readout for executives and security teams
CVE-2012-3893 is an availability issue in Cisco IOS FlexVPN. A remote user who is already authenticated could trigger spoke-to-spoke traffic that crashes a FlexVPN spoke device. Business impact is potential VPN disruption, not confirmed data theft or system takeover. Exposure is most likely where Cisco IOS 15.2 or 15.3 devices run FlexVPN with authenticated users and spoke-to-spoke VPN traffic. Organizations not using FlexVPN, or not on these IOS trains, are less likely to be affected based on the provided sources. Treat as a targeted availability risk for Cisco FlexVPN environments. Prioritize validation if VPN uptime supports critical operations. Urgency is lower than unauthenticated remote code execution, but affected production VPN hubs and spokes should be reviewed promptly. Mitigation focus: Check Cisco release notes and advisories for CSCtz02622 and affected IOS maintenance releases.; Prioritize upgrades or rebuilds following Cisco guidance for FlexVPN deployments.; Restrict FlexVPN access to trusted authenticated users where operationally feasible..
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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CVE-2012-3893 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
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