BIOVIA Workbook: Concurrent Execution using Shared Resource with Improper Synchronization
CVE-2026-5120 is a high-severity concurrent execution using shared resource with improper synchronization vulnerability in BIOVIA Workbook from Dassault Systèmes, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected BIOVIA Workbook versions: Release 2021 Golden through Release 2021 Refresh5; Release 2022 Golden through Release 2022 Refresh5; Release 2023 Golden through Release 2023 Refresh4, 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 0.33% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of BIOVIA Workbook you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on 3ds.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Dassault Systèmes | BIOVIA Workbook | Release 2021 Golden through Release 2021 Refresh5; Release 2022 Golden through Release 2022 Refresh5; Release 2023 Golden through Release 2023 Refresh4; Release 2024 Golden through Release 2024 Refresh4; Release 2025 Golden through Release 2025 Refresh3; Release 2026 Golden | Not 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
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N. Scored by CNA (3ds.com).
Official description
A Race Condition vulnerability affecting BIOVIA Workbook from Release 2021 through Release 2026 could allow a user to access unauthorized data from another user.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Concurrent Execution using Shared Resource with Improper Synchronization
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
How developers prevent this class of flaw
- In languages that support it, use synchronization primitives. Only wrap these around critical code to minimize the impact on performance.
- Use thread-safe capabilities such as the data access abstraction in Spring.
- Minimize the usage of shared resources in order to remove as much complexity as possible from the control flow and to reduce the likelihood of unexpected conditions occurring. Additionally, this will minimize the amount of synchronization necessary and may even help to reduce the likelihood of a denial of service where an attacker may be able to repeatedly trigger a critical section (CWE-400).
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Recent Concurrent Execution using Shared Resource with Improper Synchronization vulnerabilities
- 8.8 High severity
- 9.6 Critical severity
- 7.0 High severity
- 7.8 High severity
- 9.8 Critical severity
- 7.5 High severity
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