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Findings

CVE-2019-0803

Microsoft Win32k Privilege Escalation Vulnerability

Published Apr 9, 2019 · updated Jun 16, 2026 · microsoft windows 10 1507

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.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 9, 2019 · Catalog

    Detected

    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.

  2. Nov 3, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. May 3, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Required action

Apply updates per vendor instructions.

CISA due date May 3, 2022

Affected

  • cpe microsoft/windows 10 1507version unspecified
  • cpe microsoft/windows 10 1607version unspecified
  • cpe microsoft/windows 10 1703version unspecified
  • cpe microsoft/windows 10 1709version unspecified
  • vendor Microsoft Win32kversion unspecified

Sources

  • CISA KEVCVE-2019-0803

    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.

    cisa.gov
  • CVE.orgCVE-2019-0803

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2019-0803

    30-day exploitation probability 45.2%

    first.org
  • Exploit Database46920

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • NIST NVDCVE-2019-0803

    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.

    nvd.nist.gov
  • Packet Storm Securityhttp://packetstormsecurity.com/files/153034/Microsoft-Windows-Win32k-Privilege-Escalation.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com

References