CVE-2026-9394

Besen BS20 EV Charging Station Bluetooth Low Energy weak password

Published May 24, 2026 CVSS 4.0 · 2.3 Low EPSS < 1% KEV · Not listed
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."

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values 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."
Title Besen BS20 EV Charging Station Bluetooth Low Energy weak password
First Time appeared Besen
Besen bs20 Ev Charging Station
Weaknesses CWE-521
CPEs cpe:2.3:a:besen:bs20_ev_charging_station:*:*:*:*:*:*:*:*
Vendors & Products Besen
Besen bs20 Ev Charging Station
References
Metrics cvssV2_0

{'score': 1.8, 'vector': 'AV:A/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 3.1, 'vector': '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'}

cvssV3_1

{'score': 3.1, 'vector': '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'}

cvssV4_0

{'score': 2.3, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
May 27, 2026, 7:38 PM
Reserved
May 24, 2026, 6:18 AM
Status
Deferred
Published
May 24, 2026, 8:16 PM
Modified
Jul 23, 2026, 11:10 AM