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PatchSiren cyber security CVE debrief

CVE-2026-16279 Dassault Systèmes CVE debrief

CVE-2026-16279 is an Improper Authorization vulnerability in 3DPassport of 3DSwymer from Release 3DEXPERIENCE R2023x through Release 3DEXPERIENCE R2026x. This vulnerability allows attackers to gain access to some user accounts. The vulnerability impacts 3DSwymer installations using 3DPassport, particularly affecting user account security. Defenders should assess exposure, verify user account security, and implement additional authentication measures. The CVE record and NVD entry provide initial details, while a vendor advisory from [email protected] offers additional context.

Vendor
Dassault Systèmes
Product
3DSwymer
CVSS
CRITICAL 9.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-27
Original CVE updated
2026-09-08
Advisory published
2026-08-27
Advisory updated
2026-09-08

Who should care

Defenders responsible for 3DSwymer installations, especially those using 3DPassport, should assess exposure and verify user account security.

Why it matters

CVE-2026-16279 is a critical Improper Authorization vulnerability in 3DSwymer 3DPassport, allowing attackers to access user accounts. Defenders should verify exposure, assess user account security, and implement additional authentication measures.

  • Verify exposure of 3DSwymer installations to potential attackers
  • Assess and strengthen user account security measures
  • Implement additional authentication and authorization controls

Technical summary

The vulnerability affects 3DPassport in 3DSwymer from Release 3DEXPERIENCE R2023x through Release 3DEXPERIENCE R2026x. An attacker could exploit this Improper Authorization vulnerability to gain access to some user accounts. This could lead to unauthorized access and potential security breaches. Defenders should verify exposure of 3DSwymer installations, especially those using 3DPassport, and assess user account security to implement additional authentication and authorization controls.

Defensive priority

Defenders should prioritize verifying exposure of 3DSwymer installations, especially those using 3DPassport, and assess user account security.

Recommended defensive actions

  • Verify 3DSwymer installations for 3DPassport usage and potential exposure
  • Assess user account security and implement additional authentication measures
  • Review and apply vendor-provided security advisories and patches

Evidence notes

The CVE record and NVD entry provide initial details on the Improper Authorization vulnerability in 3DSwymer. Vendor advisory from [email protected] offers additional context.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-16279 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-16279

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-16279 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-16279

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.