CVE-2019-1458

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'.

Score

CVSS 3.1 7.8 High

Status

Analyzed - secure@microsoft.com

Published

2019-12-10

Last modified

2026-08-12

Known exploited (CISA KEV)

since 2022-01-10, action due 2022-07-10: Apply updates per vendor instructions.

Affected products

• Windows (Microsoft)
• Windows 10 1507 (Microsoft)
• Windows 10 1607 (Microsoft)
• Windows 7 (Microsoft)
• Windows 8.1 (Microsoft)
• Windows Rt 8.1 (Microsoft)
• Windows Server (Microsoft)
• Windows Server 2008 (Microsoft)
• Windows Server 2012 (Microsoft)
• Windows Server 2016 (Microsoft)

References

• http://packetstormsecurity.com/files/156651/Microsoft-Windows-WizardOpium-Local-Privilege-Escalation.html
• http://packetstormsecurity.com/files/159569/Microsoft-Windows-Uninitialized-Variable-Local-Privilege-Escalation.html
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1458
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1458