CVE-2026-9396
LowCVSS 3.7Exploitation Probability (EPSS)
Low risk19th percentile - higher than 19% of all known CVEs
Summary
A security flaw has been discovered in Besen BS20 EV Charging Station up to version 20260426 in the firmware version check functionality. Manipulation results in improper restriction of rendered UI layers. The attack is remote but requires high complexity.
Risk Assessment
An attacker could remotely manipulate UI layers, potentially leading to unauthorized access to charging station functions or display of false information.
Recommendation
Contact Besen for a firmware update that fixes this vulnerability. Temporarily restrict network access to the charging station.
Other vulnerabilities in Besen BS20 EV Charging Station
See all- CVE-2026-9398Low
A security vulnerability has been detected in Besen BS20 EV Charging Station up to version 20260426 in the BLE/WiFi component. Manipulation leads to authentication bypass via capture-replay attack. The attack requires local network access and is highly complex.
- CVE-2026-9397High
A weakness has been identified in Besen BS20 EV Charging Station up to 20260426 in the OTA Update Installation Handler component. Manipulation leads to improper authorization. The attack can be carried out remotely but requires high complexity.
- CVE-2026-9395Low
In Besen BS20 EV Charging Station up to version 20260426, an unknown function of the BLE/UDP component leads to insufficiently protected credentials. The attack requires local network access.
- CVE-2026-9394Low
In Besen BS20 EV Charging Station up to version 20260426, the Bluetooth Low Energy Handler component has a vulnerability that leads to weak password requirements. The attack requires local network access and is considered difficult to exploit.
Original NVD description (English source)
A security flaw has been discovered in Besen BS20 EV Charging Station up to 20260426. Affected by this vulnerability is an unknown functionality of the component Firmware Version Check. The manipulation results in improper restriction of rendered ui layers. The attack can be executed remotely. A high complexity level is associated with this attack. The exploitation appears 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."
Vulnerability data from NVD (NIST) · CISA KEV · EPSS