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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."

PUBLISHED Reserved 2026-05-24 | Published 2026-05-24 | Updated 2026-05-24 | Assigner VulDB




LOW: 2.3CVSS: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
LOW: 3.1CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
LOW: 3.1CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
1.8AV:A/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR

Problem types

Weak Password Requirements

Product status

20260426
affected

Timeline

2026-05-24:Advisory disclosed
2026-05-24:VulDB entry created
2026-05-24:VulDB entry last update

Credits

carfeii (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/365375 (VDB-365375 | Besen BS20 EV Charging Station Bluetooth Low Energy weak password) vdb-entry

vuldb.com/vuln/365375/cti (VDB-365375 | CTI Indicators (IOB, IOC, TTP)) signature permissions-required

vuldb.com/submit/813569 (Submit #813569 | Besen EV Charging Station BS20 EV Charger Weak Authentication) third-party-advisory

github.com/carfeii/besen related

cve.org (CVE-2026-9394)

nvd.nist.gov (CVE-2026-9394)

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