CVE-2019-0797

KEVMicrosoft Win32k Privilege Escalation Vulnerability

Description

Microsoft Win32k contains a privilege escalation vulnerability when the Win32k component fails to properly handle objects in memory. Successful exploitation allows an attacker to execute code in kernel mode.

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'. This CVE ID is unique from CVE-2019-0808.

CVSS 3.1 vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

PublishedApr 9, 2019

Last modifiedJun 17, 2026

Added to KEVNov 3, 2021

Remediation dueMay 3, 2022

References

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0797PatchVendor Advisory
cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0797US Government Resource

0 recent articles mention this CVE

Risk assessment · High

Actively exploited. Patch immediately.

Exploitation: Confirmed in the wild (CISA KEV)
Federal remediation deadline: Overdue by 1638 days
CVSS: 7.8 HIGH
EPSS (30-day exploit probability): 1.9% · top 21% of all CVEs
Weakness: NVD-CWE-noinfo

Recommended actions

1.Apply updates per vendor instructions.
2.Treat as emergency change: patch or isolate internet-facing instances first.
3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.

Assessment is derived automatically from the live signals above; verify against your own asset inventory.