Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-9398— Besen BS20 EV Charging Station BLE/WiFi authentication replay

Quick assessment

Affected
Besen BS20 EV Charging Station
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Besen BS20 EV Charging Station是中国Besen公司的一款交流电动汽车壁挂式充电桩。 Besen BS20 EV Charging Station 20260426及之前版本存在安全漏洞，该漏洞源于BLE/WiFi组件中未知部分操作不当，可能导致通过捕获重放绕过身份验证，攻击复杂度高。

CVSS 3.1 · Low EPSS 0.29% · P22

Possible ATT&CK Techniques 1 AI

T1110.004 · Credential Stuffing

Affected Version Matrix 1

VendorProduct Version RangeStatus
Besen BS20 EV Charging Station 20260426 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-9398

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Besen BS20 EV Charging Station BLE/WiFi authentication replay
Source: CVE Program / CVE List V5
Vulnerability 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."
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用捕获-重放进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Besen BS20 EV Charging Station 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Besen BS20 EV Charging Station是中国Besen公司的一款交流电动汽车壁挂式充电桩。 Besen BS20 EV Charging Station 20260426及之前版本存在安全漏洞，该漏洞源于BLE/WiFi组件中未知部分操作不当，可能导致通过捕获重放绕过身份验证，攻击复杂度高。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Besen BS20 EV Charging Station 20260426 cpe:2.3:a:besen:bs20_ev_charging_station:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9398

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-9398

请登录查看更多情报信息。

Proof of Concept for CVE-2026-9398 (1)

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

CVE-2026-9397 8.1 HIGH Besen BS20 EV Charging Station OTA Update Installation improper authorization
CVE-2026-9396 3.7 LOW Besen BS20 EV Charging Station Firmware Version Check ui layer
CVE-2026-9395 3.5 LOW Besen BS20 EV Charging Station BLE/UDP insufficiently protected credentials
CVE-2026-9394 3.1 LOW Besen BS20 EV Charging Station Bluetooth Low Energy weak password

IV. Related Vulnerabilities

Same product: BS20 EV Charging Station
Same vendor: Besen
Same weakness: CWE-294

V. Comments for CVE-2026-9398

No comments yet

Leave a comment