Security readout for executives and security teams
OpenConnect 3.18 could crash when a remote VPN server sends a malformed greeting banner. The known impact is denial of service to the client, not confirmed data theft or remote code execution. The source bundle does not show active exploitation or a CVSS score. Exposure is most likely on endpoints or servers running legacy OpenConnect 3.18 packages, especially systems that connect to VPN servers not fully trusted. Modern patched distribution packages are less likely exposed, but version confirmation is required. Treat as a targeted availability risk for legacy VPN client deployments. Prioritize normal patching where OpenConnect is present, with faster action for systems connecting to third-party or less trusted VPN servers. No source indicates emergency active exploitation. Mitigation focus: Inventory systems using OpenConnect and identify any 3.18 installations.; Apply relevant Debian, Fedora, openSUSE, or upstream OpenConnect security updates.; Avoid using vulnerable clients with untrusted or unknown VPN servers..
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-2012-3291 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
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
- oval:org.mitre.oval:def:17242CVE reference · vdb-entry, signature
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.