Security readout for executives and security teams
This vulnerability can let a context-dependent attacker crash affected OpenBSD systems by exhausting semaphore allocation beyond the default. The business impact is service outage, not confirmed data theft or code execution. The sources identify OpenBSD 3.8, 3.9, and possibly earlier versions, with OpenBSD errata published in August 2006. Exposure is most likely on legacy OpenBSD 3.8 or 3.9 systems, and possibly earlier OpenBSD versions. Modern, patched, or upgraded OpenBSD deployments are not identified as affected in the supplied sources. Treat this as a legacy availability risk. It deserves prompt attention if old OpenBSD systems support critical services, but the supplied evidence does not support claims of active exploitation or confidentiality impact. Mitigation focus: Identify any OpenBSD 3.8, 3.9, or earlier hosts still in use.; Review the OpenBSD semaphore errata linked for versions 3.8 and 3.9.; Apply the referenced OpenBSD security fix or upgrade per vendor guidance..
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-2006-4435 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
- openbsd-semaphores-dos(28617)CVE reference · vdb-entry, x_refsource_XF
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.