CVE record · CVE-2026-7858

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 throu…

CVSS 9.8 CriticalCriticalEPSS 0.0054 · 45th percentile

Critical, because:

CVSS score 9.8: 9.0 or more.

Published by the CVE Program (CNA: 3DS) at 1 Jun 2026, 07:45 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Dassault Systèmes	Teamwork Cloud - Standard Edition	affected No Magic Release 2022x Golden to No Magic Release 2022x Refresh2 HF3, inclusive custom affected No Magic Release 2024x Golden to No Magic Release 2024x Refresh3 HF1, inclusive custom affected No Magic Release 2026x Golden to No Magic Release 2026x Golden HF2, inclusive custom Other versions: unaffected
Dassault Systèmes	Teamwork Cloud - Business Edition	affected No Magic Release 2022x Golden to No Magic Release 2022x Refresh2 HF3, inclusive custom affected No Magic Release 2024x Golden to No Magic Release 2024x Refresh3 HF1, inclusive custom affected No Magic Release 2026x Golden to No Magic Release 2026x Golden HF2, inclusive custom Other versions: unaffected
Dassault Systèmes	Teamwork Cloud - Business Pro Edition	affected No Magic Release 2022x Golden to No Magic Release 2022x Refresh2 HF3, inclusive custom affected No Magic Release 2024x Golden to No Magic Release 2024x Refresh3 HF1, inclusive custom affected No Magic Release 2026x Golden to No Magic Release 2026x Golden HF2, inclusive custom Other versions: unaffected
Dassault Systèmes	Teamwork Cloud - Enterprise Edition	affected No Magic Release 2022x Golden to No Magic Release 2022x Refresh2 HF3, inclusive custom affected No Magic Release 2024x Golden to No Magic Release 2024x Refresh3 HF1, inclusive custom affected No Magic Release 2026x Golden to No Magic Release 2026x Golden HF2, inclusive custom Other versions: unaffected
Dassault Systèmes	Magic Collaboration Studio	affected CATIA Magic Release 2022x Golden to CATIA Magic Release 2022x Refresh2 HF3, inclusive custom affected CATIA Magic Release 2024x Golden to CATIA Magic Release 2024x Refresh3 HF1, inclusive custom affected CATIA Magic Release 2026x Golden to CATIA Magic Release 2026x Golden HF2, inclusive custom Other versions: unaffected

Identifiers: CVE-2026-7858
CNA: 3DS
Weakness (CWE): CWE-502
Tags: Dassault Systèmes Teamwork Cloud - Standard Edition
Dassault Systèmes Teamwork Cloud - Business Edition
Dassault Systèmes Teamwork Cloud - Business Pro Edition
Dassault Systèmes Teamwork Cloud - Enterprise Edition
Dassault Systèmes Magic Collaboration Studio
Insecure deserialization
Published: 1 Jun 2026
Updated: 1 Jun 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.8	Critical	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CNA (3DS)

CISA KEV Not listed.
EPSS 0.0054, the 45th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 1 Jun 2026. New records show when each source confirmed them.

Sources

References from the CNA

www.3ds.com/trust-center/security/security-advisories/cve-2026-7858

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.