CyberSecBulletin
CVE-2026-17061NVD status: Awaiting Analysis

SIMULIA Execution Engine: Deserialization of Untrusted Data

Published Updated By the CyberSecBulletin desk

CVE-2026-17061 is a critical-severity deserialization of untrusted data vulnerability in SIMULIA Execution Engine from Dassault Systèmes, with a CVSS 3.1 base score of 10.0 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected SIMULIA Execution Engine versions: Release 2023 Golden; Release 2024 Golden through Release 2024 FP.CFA.2615; Release 2025 Golden through Release 2025 FP.CFA.2628, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.81% chance of exploitation within 30 days, higher than 58% of scored CVEs.

Patch this week

Critical severity: a successful attack would have severe impact.

What to do

  1. Check which version of SIMULIA Execution Engine you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on 3ds.com for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
Dassault SystèmesSIMULIA Execution EngineRelease 2023 Golden; Release 2024 Golden through Release 2024 FP.CFA.2615; Release 2025 Golden through Release 2025 FP.CFA.2628; Release 2026 Golden through Release 2026 FP.CFA.2624Not stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
ChangedThe attack can reach beyond the vulnerable component into other systems.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H. Scored by CNA (3ds.com).

Official description

A Deserialization of Untrusted Data vulnerability affecting SIMULIA Execution Engine from Release 2023 through Release 2026 could lead to an unauthenticated remote code execution.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

How developers prevent this class of flaw

  • If available, use the signing/sealing features of the programming language to assure that deserialized data has not been tainted. For example, a hash-based message authentication code (HMAC) could be used to ensure that data has not been modified.
  • When deserializing data, populate a new object rather than just deserializing. The result is that the data flows through safe input validation and that the functions are safe.
  • Explicitly define a final object() to prevent deserialization.

More Deserialization of Untrusted Data vulnerabilities (CWE-502)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Recent Deserialization of Untrusted Data vulnerabilities

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