CVE-2026-7858: Dassault Systèmes Magic Collaboration Studio

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

A Deserialization of Untrusted Data vulnerability affecting Teamwork Cloud from No Magic Release 2022x through No Magic Release 2026x and Magic Collaboration Studio from CATIA Magic Release 2022x through CATIA Magic Release 2026x could lead to an unauthenticated remote code execution.

Affected products

• Dassault Systèmes Magic Collaboration Studio
• Dassault Systèmes Teamwork Cloud - Business Edition
• Dassault Systèmes Teamwork Cloud - Business Pro Edition
• Dassault Systèmes Teamwork Cloud - Enterprise Edition
• Dassault Systèmes Teamwork Cloud - Standard Edition

Published 2026-06-01. Last modified 2026-07-22.