Unauthenticated remote code execution via unsafe deserialization
Published Aug 11, 2026 · Updated Aug 11, 2026
Unsafe deserialization in Dassault Systèmes SIMULIA Execution Engine allows remote attackers to execute code without authentication. Dassault Systèmes has not disclosed the receiving endpoint, serialized-object format, deserializer, or missing validation that permits reconstruction of attacker-controlled objects. The attack requires network access and runs code with the affected service's authority.
Summary
What happened
Unsafe deserialization in Dassault Systèmes SIMULIA Execution Engine allows remote attackers to execute code without authentication. Dassault Systèmes has not disclosed the receiving endpoint, serialized-object format, deserializer, or missing validation that permits reconstruction of attacker-controlled objects. The attack requires network access and runs code with the affected service's authority.
The record
- CVE
- CVE-2026-17061
- Published
- Aug 11, 2026
- Updated
- Aug 11, 2026
- Vendor
- Dassault Systèmes
- Product
- SIMULIA Execution Engine
- Classifications
- CWE-502, CAPEC-586, T1210
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 11, 2026CVE publishedPublication date reported by the CVE source.
- Aug 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=Release 2023 Golden
- Affected versionversion=Release 2024 Golden <=Release 2024 FP.CFA.2615
- Affected versionversion=Release 2025 Golden <=Release 2025 FP.CFA.2628
- Affected versionversion=Release 2026 Golden <=Release 2026 FP.CFA.2624
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
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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