Hazard

Is CVE-2024-26169 being exploited?

Ransomware crews are using this

CISA has linked this vulnerability to known ransomware campaigns. Treat any exposed instance as an active incident, not a patching ticket.

Microsoft Windows Error Reporting Service Improper Privilege Management Vulnerability

Microsoft · Windows

CVSS 7.8 EPSS 4% no public exploit indexed ransomware Fix deadline passed 4 July 2024

What it is

Microsoft Windows Error Reporting Service contains an improper privilege management vulnerability that allows a local attacker with user permissions to gain SYSTEM privileges.

Why we say that

  • Linked by CISA to known ransomware campaigns
  • CISA's federal remediation deadline (2024-07-04) has passed
  • Listed in the CISA Known Exploited Vulnerabilities catalogue

Every line above comes from a named public source. Where the evidence is thin, we say so rather than inventing confidence — see methodology.

What to do

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

What it costs when this goes wrong

This is where UK enforcement meets the vulnerability record. This vulnerability is used in ransomware campaigns; here is what ransomware has cost UK organisations at the regulator.

All UK cases caused by ransomware →