CVE-2026-9398
LOWBesen BS20 EV Charging Station BLE/WiFi authentication replay
Title source: cnaDescription
A security vulnerability has been detected in Besen BS20 EV Charging Station up to 20260426. This affects an unknown part of the component BLE/WiFi. Such manipulation leads to authentication bypass by capture-replay. The attack must be carried out from within the local network. Attacks of this nature are highly complex. It is indicated that the exploitability is 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."
References (4)
Core 4
Core References
Vdb Entry vdb-entry
VDB-365379 | Besen BS20 EV Charging Station BLE/WiFi authentication replay
https://vuldb.com/vuln/365379
Signature, Permissions Required signature
permissions-required
VDB-365379 | CTI Indicators (IOB, IOC, TTP)
https://vuldb.com/vuln/365379/cti
Third Party Advisory third-party-advisory
Submit #813577 | Besen EV Charging Station BS20 EV Charger Improper Authorization
https://vuldb.com/submit/813577
Scores
CVSS v3
3.1
EPSS
0.0034
EPSS Percentile
26.1%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-287
CWE-294
Status
published
Products (1)
Besen/BS20 EV Charging Station
20260426
Published
May 24, 2026
Tracked Since
May 25, 2026