# CVE-2018-8589

An elevation of privilege vulnerability exists when Windows improperly handles calls to Win32k.sys, aka "Windows Win32k Elevation of Privilege Vulnerability." This affects Windows Server 2008, Windows 7, Windows Server 2008 R2.

- Page: https://www.vulneraibility.com/cve/CVE-2018-8589
- CVSS: 7.8
- Known exploited: yes, in CISA KEV since 2022-05-23; CISA due date 2022-06-13
- EPSS: 3.02% (percentile 87.6)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-02-07)
- Published: 2018-11-14

## Affected versions

- Microsoft Windows 7: affected 32-bit Systems Service Pack 1; x64-based Systems Service Pack 1
- Microsoft Windows Server 2008: affected 32-bit Systems Service Pack 2; 32-bit Systems Service Pack 2 (Server Core installation); Itanium-Based Systems Service Pack 2; x64-based Systems Service Pack 2; x64-based Systems Service Pack 2 (Server Core installation)
- Microsoft Windows Server 2008 R2: affected Itanium-Based Systems Service Pack 1; x64-based Systems Service Pack 1; x64-based Systems Service Pack 1 (Server Core installation)

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] http://www.securityfocus.com/bid/105796
- [other] http://www.securitytracker.com/id/1042140
- [other] https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8589
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8589

---
Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.