CVE-2026-9394
Besen BS20 EV Charging Station Bluetooth Low Energy weak password
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."
INFO
Published Date :
May 24, 2026, 7:30 p.m.
Last Modified :
May 24, 2026, 7:30 p.m.
Remotely Exploit :
No
Source :
VulDB
Affected Products
The following products are affected by CVE-2026-9394
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the charging station software.
- Implement stronger password policies.
- Restrict network access to the charging station.
- Follow vendor security advisories.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-9394 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-9394 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
May. 24, 2026
Action Type Old Value New Value Added 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." Added CVSS V4.0 AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Added CVSS V2 (AV:A/AC:H/Au:N/C:P/I:N/A:N) Added CWE CWE-521 Added Reference https://github.com/carfeii/besen#finding-1-weak-authentication-mechanism-in-besen-home-ev-charging-station-via-ble Added Reference https://vuldb.com/submit/813569 Added Reference https://vuldb.com/vuln/365375 Added Reference https://vuldb.com/vuln/365375/cti