Risk Letters

Exploited vulnerability

CVE-2021-41379

TLP:CLEAR

Microsoft Windows Installer Privilege Escalation Vulnerability

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

Facts

  • Vendor: Microsoft
  • Product: Windows
  • CVSS: 5.5
  • EPSS (probability of exploitation within 30 days): 19.5 %
  • On CISA's Known Exploited Vulnerabilities list since: 3 March 2022
  • First known exploitation: 3 March 2022
  • Used in ransomware campaigns (per CISA): Yes
  • CISA's deadline for US federal agencies: 17 March 2022
  • Weakness: CWE-1386
  • First seen by Risk Letters: 3 March 2022

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