Risk Letters

Exploited vulnerability

CVE-2021-33771

TLP:CLEAR

Microsoft Windows Kernel Privilege Escalation Vulnerability

Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.

Facts

  • Vendor: Microsoft
  • Product: Windows
  • CVSS: 7.8
  • EPSS (probability of exploitation within 30 days): 10.2 %
  • On CISA's Known Exploited Vulnerabilities list since: 3 November 2021
  • First known exploitation: 3 November 2021
  • CISA's deadline for US federal agencies: 17 November 2021
  • Weakness: CWE-119
  • 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