Risk Letters

Exploited vulnerability

CVE-2019-1458

TLP:CLEAR

Microsoft Win32k Privilege Escalation Vulnerability

A privilege escalation vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k EoP.

Facts

  • Vendor: Microsoft
  • Product: Win32k
  • CVSS: 7.8
  • EPSS (probability of exploitation within 30 days): 74.4 %
  • On CISA's Known Exploited Vulnerabilities list since: 10 January 2022
  • First known exploitation: 10 January 2022
  • Used in ransomware campaigns (per CISA): Yes
  • CISA's deadline for US federal agencies: 10 July 2022
  • First seen by Risk Letters: 10 January 2022

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

Get the full brief

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