CVE-2026-9394 Besen BS20 EV Charging Station Bluetooth Low Energy weak password

Low 2.3 Published Updated

Weak password requirements in the Bluetooth Low Energy handler allow local attackers to bypass security controls on Besen BS20 EV charging stations.

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-2026-9394?

CVE-2026-9394 is a low-severity vulnerability in Besen BS20 EV Charging Station, published on 24 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability was determined in Besen BS20 EV Charging Station up to 20260426. This impacts an unknown function of the component Bluetooth Low Energy Handler. Executing a manipulation can lead to weak password requirements. The attack needs to be done within the local network. This attack is characterized by high complexity. The exploitability is said to be difficult. The original disclosure mentions, that "[t]hese vulnerabilities have been reported to Besen and we have received their acknowlegement that they are reviewing this as of April 2026."

Weakness: CWE-521

Which versions are affected by CVE-2026-9394?

How do I fix CVE-2026-9394?

No fix has been published for CVE-2026-9394 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-9394 being exploited?

There is no known exploitation of CVE-2026-9394 in the wild and no public exploit code.

Sources

Also known as GHSA-fj8p-hqwr-45hx.

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