CVE-2019-0808
Microsoft Win32k Privilege Escalation Vulnerability
- Published
- Apr 9, 2019
- Updated
- Oct 21, 2025
- Assigning CNA
- microsoft
- Evidence observed
- Mar 26, 2019
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.0%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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-2019-0797.
Sources
4- CVE-2019-0808Exploit
Win32k Exploit by Grant Willcox
Proof-of-concept exploit for CVE-2019-0808, a Windows kernel privilege escalation vulnerability. Demonstrates exploitation of a use-after-free bug in win32k.sys to achieve SYSTEM privileges.
cve-2019-0808-poc
Responsible use
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