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Findings

CVE-2020-1054

Microsoft Win32k Privilege Escalation Vulnerability

Published May 21, 2020 · updated Oct 8, 2026 · microsoft windows 10 1507

An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The update addresses this vulnerability by correcting how the Windows kernel-mode driver handles objects in memory.

Timeline

Detection, updates, and resolution for this record.

  1. May 21, 2020 · Catalog

    Detected

    An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker wou

  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. Oct 8, 2026 · Catalog

    Updated

    An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker wou

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 1709version unspecified
  • cpe microsoft/windows 10 1803version unspecified
  • vendor Microsoft Win32kversion unspecified

Sources

  • CISA KEVCVE-2020-1054

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

    cisa.gov
  • CVE.orgCVE-2020-1054

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2020-1054

    30-day exploitation probability 54.2%

    first.org
  • Metasploit Modulesexploit_windows/local/cve_2020_1054_drawiconex_lpe

    Public module reference (normal). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDCVE-2020-1054

    An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; vi

    nvd.nist.gov
  • Packet Storm Securityhttp://packetstormsecurity.com/files/160515/Microsoft-Windows-DrawIconEx-Local-Privilege-Escalation.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com

References