Security readout for executives and security teams
This is an older Windows local privilege escalation flaw in win32k.sys. A user who can run a specially crafted application on an affected machine could gain higher privileges. It matters mainly where legacy Windows systems remain in service or embedded in operational environments. Exposure is most likely on unsupported or unpatched Windows XP, Server 2003, Vista, Server 2008, and Windows 7 systems listed in the CVE description. Modern supported Windows versions are not identified in the provided sources. Treat this as a legacy exposure cleanup priority, not a current internet-facing emergency based on the provided evidence. Any remaining affected systems should be patched, isolated, or retired because successful exploitation can convert limited local access into full system control. Mitigation focus: Apply Microsoft’s MS11-034 security update where applicable.; Decommission or isolate unsupported Windows versions listed as affected.; Restrict local interactive access on legacy systems..
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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CWE-476: Exact CWE lookup
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Open ATT&CK lookupCVE-2011-0676 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
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CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- mswin-win32k-var11-priv-escalation(66405)CVE reference · vdb-entry, x_refsource_XF
- MS11-034CVE reference · vendor-advisory, x_refsource_MS
- oval:org.mitre.oval:def:12416CVE reference · vdb-entry, signature
- oval:org.mitre.oval:def:12474CVE 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.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.