CVE-2026-36742 Security feature bypass in n/a

Medium 6.8 Published Updated

An attacker with physical access can bypass security restrictions by disconnecting the battery to access the UART bootloader, potentially gaining full control.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-36742?

CVE-2026-36742 is a medium-severity vulnerability in n/a, published on 13 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Hiseeu C90 v5.7.15 is vulnerable to Insecure Permissions. The UART bootloader is accessible when battery is disconnected (hidden/debug mode).

Weakness: CWE-276

Which versions are affected by CVE-2026-36742?

How do I fix CVE-2026-36742?

No fix has been published for CVE-2026-36742 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-36742 being exploited?

There is no known exploitation of CVE-2026-36742 in the wild and no public exploit code.

Sources

Also known as GHSA-cgmh-m268-gqfx.

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