CVE-2018-8589

HIGH KEV

Windows 7 and Windows Server 2008 - Privilege Escalation via Win32k.sys

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2018-8589 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added May 23, 2022.

Description

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.

References (4)

Core 4
Core References
Broken Link, Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/105796
Broken Link, Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1042140

Scores

CVSS v3 7.8
EPSS 0.5044
EPSS Percentile 97.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation active
Automatable no
Technical Impact total

Details

CISA KEV 2022-05-23
VulnCheck KEV 2018-10-17
InTheWild.io 2018-10-17
ENISA EUVD EUVD-2018-20204
Status published
Products (3)
microsoft/windows_7
microsoft/windows_server_2008
microsoft/windows_server_2008 r2 sp1 (2 CPE variants)
Published Nov 14, 2018
KEV Added May 23, 2022
Tracked Since Feb 18, 2026