Hazard

Is CVE-2020-3433 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.

Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Vulnerability

Cisco · AnyConnect Secure

CVSS 7.8 EPSS 10% no public exploit indexed ransomware Fix deadline passed 14 November 2022

What it is

Cisco AnyConnect Secure Mobility Client for Windows interprocess communication (IPC) channel allows for insufficient validation of resources that are loaded by the application at run time. An attacker with valid credentials on Windows could execute code on the affected machine with SYSTEM privileges.

Why we say that

  • Linked by CISA to known ransomware campaigns
  • CISA's federal remediation deadline (2022-11-14) 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.

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 →