Risk Letters

Exploited vulnerability

CVE-2018-8453

TLP:CLEAR

Microsoft Win32k Privilege Escalation Vulnerability

Microsoft Windows Win32k contains a vulnerability that allows an attacker to escalate privileges.

Facts

  • Vendor: Microsoft
  • Product: Win32k
  • CVSS: 7.8
  • EPSS (probability of exploitation within 30 days): 70 %
  • On CISA's Known Exploited Vulnerabilities list since: 21 January 2022
  • First known exploitation: 21 January 2022
  • Used in ransomware campaigns (per CISA): Yes
  • CISA's deadline for US federal agencies: 21 July 2022
  • Weakness: CWE-404
  • First seen by Risk Letters: 21 January 2022

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