Hazard

Is CVE-2019-8720 being exploited?

Confirmed exploited in the wild

CISA has evidence of active exploitation. This is not theoretical risk — someone has already used it against someone.

WebKitGTK Memory Corruption Vulnerability

WebKitGTK · WebKitGTK

CVSS 8.8 EPSS 2% no public exploit indexed Fix deadline passed 13 June 2022

What it is

WebKitGTK contains a memory corruption vulnerability which can allow an attacker to perform remote code execution.

Why we say that

  • CISA's federal remediation deadline (2022-06-13) 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 →