CVE-2026-105043

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.

CVSS 3.1

3.6CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS

0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-25)

CWE

CWE-451

Published

2026-10-02

Modified

2026-10-06

Record from

the NVD, synced 2026-10-19

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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