MathWorks Simulink before R2026b, when showing a crafted .slx file, can have blocks that…
Priority LOW 16CWE-451Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-451.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00119 1st percentileScored 2026-11-07
Fix Fixed Simulink (MathWorks): R2026b
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Simulink (MathWorks) Fixed in R2026b
Timeline
- 2026-10-02 Threatist record created from CVE-2026-105043
- 2026-10-03 Alias added: GHSA-j3v4-fmf2-7fmp
- 2026-10-05 CISA SSVC decision points changed
References
Sources
- CVE-2026-105043 · CVE Program
- CVE-2026-105043 · NVD
- FIRST EPSS
- GHSA-j3v4-fmf2-7fmp · GitHub Advisory Database · CC BY 4.0
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