Hazard

Is CVE-2018-18809 being exploited?

Weaponised and widely attempted

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

TIBCO JasperReports Library Directory Traversal Vulnerability

TIBCO · JasperReports

CVSS 6.5 EPSS 79% no public exploit indexed Fix deadline passed 19 January 2023

What it is

TIBCO JasperReports Library contains a directory-traversal vulnerability that may allow web server users to access contents of the host system.

Why we say that

  • EPSS puts exploitation in the next 30 days at 79%
  • CISA's federal remediation deadline (2023-01-19) 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 →