CVE-2026-9396 MEDIUM

CVE-2026-9396: Besen BS20 EV Charging Station Firmware Version Check ui layer

Vendor Besen
Product BS20 EV Charging Station
Weakness CWE-1021
Published May 24, 2026
Last update May 26, 2026

CVSS base score

6.3/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A security flaw has been discovered in Besen BS20 EV Charging Station up to 20260426. Affected by this vulnerability is an unknown functionality of the component Firmware Version Check. The manipulation results in improper restriction of rendered ui layers. The attack can be executed remotely. A high complexity level is associated with this attack. The exploitation appears to be 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."

Key dates

02Disclosure timeline

May 24, 2026 CVE published
May 26, 2026 Record updated