Risk Letters

Exploited vulnerability

CVE-2021-31955

TLP:CLEAR

Microsoft Windows Kernel Information Disclosure Vulnerability

Microsoft Windows Kernel contains an unspecified vulnerability that allows for information disclosure. Successful exploitation allows attackers to read the contents of kernel memory from a user-mode process.

Facts

  • Vendor: Microsoft
  • Product: Windows
  • CVSS: 5.5
  • EPSS (probability of exploitation within 30 days): 81.1 %
  • 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-497
  • First seen by Risk Letters: 3 November 2021

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