CVE-2026-9398

LOW EPSS 21.1%
Published May 24, 20261mo ago · Modified Jun 17, 20261w ago
1.3 CVSS 4.0
Low
Find Similar
Published May 24, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 Details

Base Score
1.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Adjacent
Attack Complexity High
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
21.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-287 Improper Authentication Authentication
CWE-294

References 4

  • github.com https://github.com/carfeii/besen#finding-5-unauthorized-tampering-of-charger-commands
  • vuldb.com https://vuldb.com/submit/813577
  • vuldb.com https://vuldb.com/vuln/365379
  • vuldb.com https://vuldb.com/vuln/365379/cti

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.