PT-2026-45386 · Dassault Systèmes · Teamwork Cloud+1

Tyler Harkness · Published 2026-06-01 · Updated 2026-06-07 · CVE-2026-7858

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Teamwork Cloud versions No Magic Release 2022x through No Magic Release 2026x Magic Collaboration Studio versions CATIA Magic Release 2022x through CATIA Magic Release 2026x

Description An issue involving the deserialization of untrusted data could lead to unauthenticated remote code execution. Deserialization is the process of converting a data stream back into an object, which, when handled insecurely, allows an attacker to execute arbitrary commands on the system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2026-7858

Affected Products

Magic Collaboration Studio

Teamwork Cloud

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-7858 · Security Note
• https://twitter.com/HugoValters/status/2063688440378458489 · Twitter Post
• https://twitter.com/SecAlertsCo/status/2063525609737756817 · Twitter Post
• https://t.me/CVEtracker/55468 · Telegram Post
• https://3ds.com/trust-center/security/security-advisories/cve-2026-7858 · Note