CVE-2019-0803
CISA KEVPublished November 3, 2021 · Updated April 3, 2026
high
Official Description+
Microsoft Win32k contains an unspecified vulnerability due to it failing to properly handle objects in memory causing privilege escalation. Successful exploitation allows an attacker to run code in kernel mode.
Affected Products
| Vendor | Product |
|---|---|
| Microsoft | Win32k |
Patch Status
Patch by 2022-05-03
Recommended Actions
- Check if your systems use any of the affected products listed above.
- Apply vendor patches immediately if available.
- This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
- Monitor vendor advisories for updates and additional mitigations.
- Review logs for indicators of compromise related to CVE-2019-0803.