Unauthenticated RCE in a widely used enterprise PLM/CAD platform (3DEXPERIENCE) that can lead to full compromise of engineering/manufacturing environments.
CVE-2026-11756
Unauthenticated deserialization RCE in 3DEXPERIENCE Station Launcher
Is CVE-2026-11756 being exploited?
Not confirmed. CVE-2026-11756 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.45% probability of exploitation in the next 30 days.
How severe is CVE-2026-11756?
CVE-2026-11756 is rated Critical with a CVSS score of 10.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-11756?
Not known from our data. No patch reference has been recorded for CVE-2026-11756, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-11756 affect?
CVE-2026-11756 affects Dassault Systèmes 3DEXPERIENCE Station Launcher (R2023x–R2026x). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-11756?
Isolate instances, restrict network access to Launcher, increase monitoring, apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote code execution on affected 3DEXPERIENCE hosts, enabling full system compromise, lateral movement, and data theft.
Immediate action required
- affected>= Release 3DEXPERIENCE R2023x Golden and <= Release 3DEXPERIENCE R2023x.FP.CFA.2613
- affected>= Release 3DEXPERIENCE R2024x Golden and <= Release 3DEXPERIENCE R2024x.FP.CFA.2615
- affected>= Release 3DEXPERIENCE R2025x Golden and <= Release 3DEXPERIENCE R2025x.FP.CFA.2628
- affected>= Release 3DEXPERIENCE R2026x Golden and <= Release 3DEXPERIENCE R2026x.FP.CFA.2624
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.