CVE-2026-105043 Code injection in Simulink
Attackers can execute arbitrary code by tricking users into opening a crafted Simulink model file containing hidden malicious blocks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-105043?
CVE-2026-105043 is a low-severity code injection vulnerability in MathWorks Simulink, published on 2 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-451
Which versions are affected by CVE-2026-105043?
How do I fix CVE-2026-105043?
No fix has been published for CVE-2026-105043 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-105043 being exploited?
There is no known exploitation of CVE-2026-105043 in the wild and no public exploit code.
Sources
Also known as GHSA-j3v4-fmf2-7fmp.