Security readout for executives and security teams
This flaw affects OpenBSD 5.8 and 5.9. A crafted use of the __MAP_NOFAULT mmap extension with a large size value can trigger a kernel panic, crashing the system. The documented impact is denial of service, not data theft or code execution. Exposure is most plausible on systems still running OpenBSD 5.8 or 5.9. The provided sources do not identify other affected products, packages, or supported versions. Systems that allow untrusted users or workloads may have higher operational risk. Prioritize remediation for legacy OpenBSD systems that support critical services or untrusted users. Business risk is service outage from kernel crash, with no source evidence of active exploitation or data compromise. Mitigation focus: Identify any OpenBSD 5.8 or 5.9 systems.; Review OpenBSD 5.8 and 5.9 errata for the vendor fix.; Upgrade unsupported OpenBSD systems to a maintained release where 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-2016-6239 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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