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CISA Known Exploited Vulnerabilities

Microsoft Win32k Privilege Escalation Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV
2021-11-03
Remediation due
2022-05-03
Ransomware
Known use

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2019-0803

Description

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-2019-0685, CVE-2019-0859.

Severity

CVSS 3.1 · CISA7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC · CISA-ADP
Exploitationactive
Automatableno
Technical impacttotal

Affected Products

VendorProductAffected versions
MicrosoftWindows
7 for 32-bit Systems Service Pack 1
7 for x64-based Systems Service Pack 1
8.1 for 32-bit systems
8.1 for x64-based systems
RT 8.1
10 for 32-bit Systems
10 for x64-based Systems
10 Version 1607 for 32-bit Systems
10 Version 1607 for x64-based Systems
10 Version 1703 for 32-bit Systems
10 Version 1703 for x64-based Systems
10 Version 1709 for 32-bit Systems
10 Version 1709 for x64-based Systems
10 Version 1803 for 32-bit Systems
10 Version 1803 for x64-based Systems
10 Version 1803 for ARM64-based Systems
10 Version 1809 for 32-bit Systems
10 Version 1809 for x64-based Systems
10 Version 1809 for ARM64-based Systems
10 Version 1709 for ARM64-based Systems
MicrosoftWindows Server
2008 R2 for x64-based Systems Service Pack 1 (Core installation)
2008 R2 for Itanium-Based Systems Service Pack 1
2008 R2 for x64-based Systems Service Pack 1
2008 for 32-bit Systems Service Pack 2 (Core installation)
2012
2012 (Core installation)
2012 R2
2012 R2 (Core installation)
2016
2016 (Core installation)
version 1709 (Core Installation)
version 1803 (Core Installation)
2019
2019 (Core installation)
2008 for Itanium-Based Systems Service Pack 2
2008 for 32-bit Systems Service Pack 2
2008 for x64-based Systems Service Pack 2
2008 for x64-based Systems Service Pack 2 (Core installation)

References

2 Links

Record Details

Published
2019-04-09
Last updated
2025-10-21
Assigner (CNA)
microsoft
Credited to
-

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.