CVE-2026-9394
Besen BS20 EV Charging Station Bluetooth Low Energy weak password
- State
- Published
- Severity
- 2.3 Low
- Published
- May 24, 2026
- Updated
- May 27, 2026
- Reserved
- May 24, 2026
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."
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.3 Low | CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.1 Low | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R | VulDB |
| 3.0 | 3.1 Low | CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R | VulDB |
| 2.0 | 1.8 Low | AV:A/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-521 Weak Password Requirements
Affected Products
| Product | Versions |
|---|---|
BS20 EV Charging StationBesen |
|
References
- VDB-365375 | Besen BS20 EV Charging Station Bluetooth Low Energy weak passwordvdb-entry
- VDB-365375 | CTI Indicators (IOB, IOC, TTP)signaturepermissions-required
- Submit #813569 | Besen EV Charging Station BS20 EV Charger Weak Authenticationthird-party-advisory
- https://github.com/carfeii/besen#finding-1-weak-authentication-mechanism-in-besen-home-ev-charging-station-via-blerelated
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