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TI-2026-08245 Aliases CVE-2026-9398GHSA-vvwr-2pc3-326q

Besen BS20 EV Charging Station BLE/WiFi authentication replay

Priority LOW 12CWE-287Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

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."

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00294 22nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
BesenBS20 EV Charging Station20260426—No fix listedCNA
  • BS20 EV Charging Station VendorBesen Affected 20260426 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:besen:bs20_ev_charging_station:*:*:*:*:*:*:*:*——Besen
  • cpe:2.3:a:besen:bs20_ev_charging_station:*:*:*:*:*:*:*:* Versions — — ·Besen

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-9398
  2. 2026-10-03 Alias added: GHSA-vvwr-2pc3-326q

References

Other 1

  • TI-2026-08243 Besen BS20 EV Charging Station Firmware Version Check ui layer CVSS 4.0MEDIUM 6.3
  • TI-2026-08244 Besen BS20 EV Charging Station OTA Update Installation improper authorization CVSS 4.0CRITICAL 9.2
  • TI-2026-08242 Besen BS20 EV Charging Station BLE/UDP insufficiently protected credentials CVSS 4.0MEDIUM 5.1
  • TI-2026-08241 Besen BS20 EV Charging Station Bluetooth Low Energy weak password CVSS 4.0LOW 2.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences