Known Exploited Vulnerability

CVE-2019-1132

Microsoft Win32k Privilege Escalation Vulnerability

Past federal due date 25 public exploits Added 15 Mar 2022 Due 05 Apr 2022 · 1585 days ago
VendorMicrosoft
ProductWin32k
WeaknessNot mapped
RansomwareNone confirmed

What the flaw is

A privilege escalation vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory.

Description as published by CISA. We have not independently reproduced it.

What CISA requires

Apply updates per vendor instructions.

This deadline is binding on US federal civilian agencies under BOD 22-01. It is not a legal deadline for anyone else, but it is a useful urgency signal — CISA sets it by how actively the flaw is being used, not by CVSS.

Public exploit code

25 public repositories referencing this CVE have been catalogued on GitHub. Treat this as a strong signal to prioritise patching, not as a verified working exploit — many such repositories are scanners, write-ups or forks rather than functional code.

Showing 8 of 25. Full list in the trickest/cve dataset.

Vendor advisories

Primary sources

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Source: CISA KEV catalog · last verified August 6, 2026. Rebuilt automatically twice a day.