CVE-2026-11756Network attack vector

Unauthenticated remote code execution via untrusted deserialization

Published Jul 28, 2026 · Updated Jul 28, 2026

Deserialization of untrusted data in Dassault Systèmes Station Launcher App R2023x through R2026x allows remote attackers to execute code. Dassault Systèmes has not disclosed the serializer, input field, request handler, or object type that processes the untrusted serialized data. No authentication or user interaction is required, and successful exploitation executes attacker-controlled code on the affected client machine.

CVSS severity10.0
Critical
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization of untrusted data in Dassault Systèmes Station Launcher App R2023x through R2026x allows remote attackers to execute code. Dassault Systèmes has not disclosed the serializer, input field, request handler, or object type that processes the untrusted serialized data. No authentication or user interaction is required, and successful exploitation executes attacker-controlled code on the affected client machine.

The record

CVE
CVE-2026-11756
Published
Jul 28, 2026
Updated
Jul 28, 2026
Vendor
Dassault Systèmes
Product
Station Launcher App
Classifications
CWE-502, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Release 3DEXPERIENCE R2023x Golden <=Release 3DEXPERIENCE R2023x.FP.CFA.2613
  2. Affected versionversion=Release 3DEXPERIENCE R2024x Golden <=Release 3DEXPERIENCE R2024x.FP.CFA.2615
  3. Affected versionversion=Release 3DEXPERIENCE R2025x Golden <=Release 3DEXPERIENCE R2025x.FP.CFA.2628
  4. Affected versionversion=Release 3DEXPERIENCE R2026x Golden <=Release 3DEXPERIENCE R2026x.FP.CFA.2624

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Dassault Systèmes · Station Launcher Appversion=Release 3DEXPERIENCE R2023x Golden <=Release 3DEXPERIENCE R2023x.FP.CFA.2613; version=Release 3DEXPERIENCE R2024x Golden <=Release 3DEXPERIENCE R2024x.FP.CFA.2615; version=Release 3DEXPERIENCE R2025x Golden <=Release 3DEXPERIENCE R2025x.FP.CFA.2628; version=Release 3DEXPERIENCE R2026x Golden <=Release 3DEXPERIENCE R2026x.FP.CFA.2624

Published CVSS scores

10.0Dassault SystèmesCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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