Risk Letters

Exploited vulnerability

CVE-2020-1054

TLP:CLEAR

Microsoft Win32k Privilege Escalation Vulnerability

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.

Facts

  • Vendor: Microsoft
  • Product: Win32k
  • CVSS: 7
  • EPSS (probability of exploitation within 30 days): 53.9 %
  • On CISA's Known Exploited Vulnerabilities list since: 3 November 2021
  • First known exploitation: 3 November 2021
  • CISA's deadline for US federal agencies: 3 May 2022
  • Weakness: CWE-787
  • First seen by Risk Letters: 3 November 2021

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD