What’s Vulnerable › Vulnerabilities

CVE-2026-105043

• Severity: low (CVSS 3.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-02 · updated 2026-10-06
• Weakness: CWE-451

Description

MathWorks Simulink before R2026b, when showing a crafted .slx file, can have blocks that are never visible in the Simulink Editor but will cause code execution.

Affected products

• MathWorks Simulink: before R2026b — fixed in R2026b

How to fix

Upgrade to a fixed version: MathWorks Simulink R2026b. Check the vendor advisory for mitigations.

References

• https://alexanderboll.dev/disclosures/simulink-vulnerability-concealed-blocks/
• https://www.mathworks.com/help/simulink/release-notes.html#mw_81eb54b6-4dfa-42c1-8c3c-e998eff5a8cd
• https://www.mathworks.com/products/simulink.html

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