CVE-2026-9398Besen BS20 EV Charging Station BLE/WiFi authentication replay
Updated under an hour ago ()
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It affects Besen BS20 EV Charging Station. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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."
- CVSS
- 3.1 LOW (v3.1, CNA)CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
- Weakness (CWE)
- CWE-294, CWE-287
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- May 29, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Besen BS20 EV Charging Station besen:bs20_ev_charging_station | 20260426 | CNA record |
References
- https://vuldb.com/vuln/365379vdb-entry
- https://vuldb.com/vuln/365379/ctisignature, permissions-required
- https://vuldb.com/submit/813577third-party-advisory
- https://github.com/carfeii/besen#finding-5-unauthorized-tampering-of-charger-commandsrelated
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.