Security readout for executives and security teams
CVE-2013-3866 is a Microsoft Windows kernel-mode driver flaw in win32k.sys. A local user who can run a crafted application could elevate privileges on affected Windows systems. This is mainly a concern for legacy Windows assets and environments where untrusted local code can execute. Exposure is most likely on legacy or unpatched Windows endpoints and servers matching the affected versions. Internet exposure is not indicated; the source describes local users and a crafted application, so risk depends on local access, malware execution, or compromised low-privilege accounts. Prioritize remediation on legacy Windows systems that still support business operations. This is not described as remotely exploitable from the internet, but it can materially worsen a compromise by turning limited local access into higher privileges. Mitigation focus: Apply Microsoft security update guidance from MS13-076 for affected systems.; Retire or isolate unsupported Windows versions that cannot receive the update.; Restrict untrusted local application execution on legacy Windows hosts..
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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Privilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2013-3866 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
- MS13-076CVE reference · vendor-advisory, x_refsource_MS
- oval:org.mitre.oval:def:18951CVE 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.