Vulnerability in Microsoft Windows 7
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.
EPSS: 0.504 (97.9th percentile) — read the EPSS interpretation.
Affected products
- Microsoft Windows 7 — versions 32-bit Systems Service Pack 1, x64-based Systems Service Pack 1
- Microsoft Windows Server 2008 — versions 32-bit Systems Service Pack 2, 32-bit Systems Service Pack 2 (Server Core installation), Itanium-Based Systems Service Pack 2
- Microsoft Windows Server 2008 R2 — versions Itanium-Based Systems Service Pack 1, x64-based Systems Service Pack 1, x64-based Systems Service Pack 1 (Server Core installation)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- 105796 (vdb-entry, x_refsource_BID)
- 1042140 (vdb-entry, x_refsource_SECTRACK)
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8589 (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2018-8589?
- CVE-2018-8589 is a vulnerability in Microsoft Windows 7. Published 2018-11-14.
- Is CVE-2018-8589 known to be exploited?
- Yes. CVE-2018-8589 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-05-23), indicating it is being actively exploited. 15 public proof-of-concept repositories are indexed.