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

CVSS 3.7 · Low EPSS 0.03% · P8

Affected Version Matrix 1

VendorProductVersion RangeStatus
BesenBS20 EV Charging Station20260426affected
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I. Basic Information for CVE-2026-9396

Vulnerability Information
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Vulnerability Title
Besen BS20 EV Charging Station Firmware Version Check ui layer
Source: NVD (National Vulnerability Database)
Vulnerability Description
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."
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
不当限制渲染UI层或帧
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
BesenBS20 EV Charging Station 20260426 cpe:2.3:a:besen:bs20_ev_charging_station:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9396

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III. Intelligence Information for CVE-2026-9396

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Other References for CVE-2026-9396 (1)

Same Patch Batch · Besen · 2026-05-24 · 5 CVEs total

CVE-2026-93978.1 HIGHBesen BS20 EV Charging Station OTA Update Installation improper authorization
CVE-2026-93953.5 LOWBesen BS20 EV Charging Station BLE/UDP insufficiently protected credentials
CVE-2026-93943.1 LOWBesen BS20 EV Charging Station Bluetooth Low Energy weak password
CVE-2026-93983.1 LOWBesen BS20 EV Charging Station BLE/WiFi authentication replay

IV. Related Vulnerabilities

Same product: BS20 EV Charging Station
Same vendor: Besen
Same weakness: CWE-1021

V. Comments for CVE-2026-9396

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