Hazard

Is CVE-2016-3393 being exploited?

Weaponised and widely attempted

Reliable public exploit code exists, or mass exploitation attempts are probable. Patch inside days, not weeks.

Microsoft Windows Graphics Device Interface (GDI) Remote Code Execution Vulnerability

Microsoft · Windows

CVSS 7.8 EPSS 69% no public exploit indexed Fix deadline passed 15 June 2022

What it is

A remote code execution vulnerability exists due to the way the Windows GDI component handles objects in the memory. An attacker who successfully exploits this vulnerability could take control of the affected system.

Why we say that

  • EPSS puts exploitation in the next 30 days at 69%
  • CISA's federal remediation deadline (2022-06-15) 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. Where an unfixed vulnerability leads to a breach, the ICO treats it as a security failure under UK GDPR. Recent cases:

All UK cases caused by unpatched software →