Hazard

Is CVE-2025-6205 being exploited?

Weaponised and widely attempted

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

Dassault Systèmes DELMIA Apriso Missing Authorization Vulnerability

Dassault Systèmes · DELMIA Apriso

CVSS 9.1 EPSS 71% no public exploit indexed Fix deadline passed 18 November 2025

What it is

Dassault Systèmes DELMIA Apriso contains a missing authorization vulnerability that could allow an attacker to gain privileged access to the application.

Why we say that

  • EPSS puts exploitation in the next 30 days at 71%
  • CISA's federal remediation deadline (2025-11-18) has passed
  • CVSS 9.1 critical
  • 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 mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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 →