CVE-2026-5120Network attack vector

Authenticated cross-user data access via race condition

Published Jul 1, 2026 · Updated Jul 1, 2026

Race condition in Dassault Systèmes BIOVIA Workbook Release 2021 through Release 2026 allows remote authenticated users to access other users' data. Dassault Systèmes has not disclosed the affected component, racing operations, or shared resource whose synchronization fails. A valid account and network access are required; the record does not say whether unauthorized access permits viewing, modification, or both.

CVSS severity8.1
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in Dassault Systèmes BIOVIA Workbook Release 2021 through Release 2026 allows remote authenticated users to access other users' data. Dassault Systèmes has not disclosed the affected component, racing operations, or shared resource whose synchronization fails. A valid account and network access are required; the record does not say whether unauthorized access permits viewing, modification, or both.

The record

CVE
CVE-2026-5120
Published
Jul 1, 2026
Updated
Jul 1, 2026
Vendor
Dassault Systèmes
Product
BIOVIA Workbook
Classifications
CWE-362
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 1, 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.

  1. Affected versionversion=Release 2021 Golden <=Release 2021 Refresh5
  2. Affected versionversion=Release 2022 Golden <=Release 2022 Refresh5
  3. Affected versionversion=Release 2023 Golden <=Release 2023 Refresh4
  4. Affected versionversion=Release 2024 Golden <=Release 2024 Refresh4
  5. Affected versionversion=Release 2025 Golden <=Release 2025 Refresh3
  6. Affected versionversion=Release 2026 Golden

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Dassault Systèmes · BIOVIA Workbookversion=Release 2021 Golden <=Release 2021 Refresh5; version=Release 2022 Golden <=Release 2022 Refresh5; version=Release 2023 Golden <=Release 2023 Refresh4; version=Release 2024 Golden <=Release 2024 Refresh4; version=Release 2025 Golden <=Release 2025 Refresh3; version=Release 2026 Golden

Published CVSS scores

8.1Dassault SystèmesCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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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