Security readout for executives and security teams
Plain-English summary
CVE-2011-0086 is a Windows kernel privilege escalation issue. A person or process that can already run a crafted application locally on an affected legacy Windows system could gain higher privileges. This is not described as remote code execution in the supplied sources.
Executive priority
Treat as high priority if any affected legacy Windows systems remain in production. The issue can turn local access into administrative control, which materially worsens endpoint compromise and lateral movement risk.
Technical view
win32k.sys in affected Microsoft Windows kernel-mode drivers improperly validates user-mode input. The CVE description says local users can gain privileges through a crafted application. Microsoft tracks this under MS11-012 as the Win32k Improper User Input Validation Vulnerability.
Likely exposure
Exposure is likely limited to legacy systems running the listed Windows versions: XP SP2/SP3, Server 2003 SP2, Vista SP1/SP2, Server 2008, Server 2008 R2, or Windows 7.
Exploitation context
The provided bundle does not show CISA KEV listing or confirmed active exploitation. Exploitation requires local ability to run an application, so risk is highest on shared workstations, jump hosts, and compromised endpoints.
Researcher notes
The source bundle lacks CVSS, CWE, and detailed exploitability metrics. Analysis should stay anchored to MS11-012 and the CVE description: local privilege escalation through improper user-mode input validation in win32k.sys on specified Windows versions.
Mitigation direction
- Review Microsoft MS11-012 for applicable vendor updates.
- Patch affected supported systems according to Microsoft guidance.
- Migrate or isolate unsupported legacy Windows systems.
- Restrict local logon and untrusted application execution.
- Prioritize shared or internet-adjacent legacy Windows hosts.
Validation and detection
- Inventory Windows versions and service packs across endpoints and servers.
- Check patch status against Microsoft MS11-012.
- Use the referenced OVAL definition where compatible.
- Confirm no affected legacy Windows systems remain unpatched.
- Document compensating controls for systems that cannot be upgraded.
Public sources used
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2011-0086 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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
- MS11-012CVE reference · vendor-advisory, x_refsource_MS
- oval:org.mitre.oval:def:12070CVE 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.