Hazard

Is CVE-2013-0431 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.

Oracle JRE Sandbox Bypass Vulnerability

Oracle · Java Runtime Environment (JRE)

CVSS 5.3 EPSS 90% 1 public exploit ransomware Fix deadline passed 15 June 2022

What it is

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle allows remote attackers to bypass the Java security sandbox.

Why we say that

  • Linked by CISA to known ransomware campaigns
  • EPSS puts exploitation in the next 30 days at 90%
  • 1 public exploit published
  • 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.

Public exploit code

Indexed from Exploit-DB. Presence of code raises urgency; absence does not mean safety.

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 →