PT-2026-42969 · Besen · Bs20 Ev Charging Station

Carfeii · Published 2026-05-24 · Updated 2026-05-24 · CVE-2026-9398

Positive Technologies (AI Summary)

CVSS v3.1

3.1

Low

Base vector

AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Besen BS20 EV Charging Station versions prior to 20260426

Description A security issue exists in the BLE/WiFi component that allows for an authentication bypass via a capture-replay attack. This type of attack, where a valid transmission is recorded and later re-sent to deceive a system, requires the attacker to be within the local network. Exploitation is considered highly complex and difficult.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Authentication

Weakness Enumeration

CWE-287

CWE-294

Related Identifiers

CVE-2026-9398

Affected Products

Bs20 Ev Charging Station

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-9398 · Security Note
• https://vuldb.com/vuln/365379 · Note
• https://vuldb.com/vuln/365379/cti · Note
• https://vuldb.com/submit/813577 · Note
• https://github.com/carfeii/besen#finding-5-unauthorized-tampering-of-charger-commands · Note
• https://t.me/CVEtracker/54791 · Telegram Post