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Vulnerability Details :

CVE-2026-9394

Summary
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
Published At-24 May, 2026 | 19:30
Updated At-24 May, 2026 | 19:30
Rejected At-
Credits

Besen BS20 EV Charging Station Bluetooth Low Energy weak password

A vulnerability was determined in Besen BS20 EV Charging Station up to 20260426. This impacts an unknown function of the component Bluetooth Low Energy Handler. Executing a manipulation can lead to weak password requirements. The attack needs to be done within the local network. This attack is characterized by high complexity. The exploitability is said 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."

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulDB
Assigner Org ID:1af790b2-7ee1-4545-860a-a788eba489b5
Published At:24 May, 2026 | 19:30
Updated At:24 May, 2026 | 19:30
Rejected At:
▼CVE Numbering Authority (CNA)
Besen BS20 EV Charging Station Bluetooth Low Energy weak password

A vulnerability was determined in Besen BS20 EV Charging Station up to 20260426. This impacts an unknown function of the component Bluetooth Low Energy Handler. Executing a manipulation can lead to weak password requirements. The attack needs to be done within the local network. This attack is characterized by high complexity. The exploitability is said 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."

Affected Products
Vendor
Besen
Product
BS20 EV Charging Station
CPEs
  • cpe:2.3:a:besen:bs20_ev_charging_station:*:*:*:*:*:*:*:*
Modules
  • Bluetooth Low Energy Handler
Versions
Affected
  • 20260426
Problem Types
TypeCWE IDDescription
CWECWE-521Weak Password Requirements
Type: CWE
CWE ID: CWE-521
Description: Weak Password Requirements
Metrics
VersionBase scoreBase severityVector
4.02.3LOW
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
3.13.1LOW
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
3.03.1LOW
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
2.01.8N/A
AV:A/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR
Version: 4.0
Base score: 2.3
Base severity: LOW
Vector:
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
Version: 3.1
Base score: 3.1
Base severity: LOW
Vector:
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
Version: 3.0
Base score: 3.1
Base severity: LOW
Vector:
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
Version: 2.0
Base score: 1.8
Base severity: N/A
Vector:
AV:A/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

reporter
carfeii (VulDB User)
coordinator
VulDB CNA Team
Timeline
EventDate
Advisory disclosed2026-05-24 00:00:00
VulDB entry created2026-05-24 02:00:00
VulDB entry last update2026-05-24 08:24:09
Event: Advisory disclosed
Date: 2026-05-24 00:00:00
Event: VulDB entry created
Date: 2026-05-24 02:00:00
Event: VulDB entry last update
Date: 2026-05-24 08:24:09
Replaced By

Rejected Reason

References
HyperlinkResource
https://vuldb.com/vuln/365375
vdb-entry
https://vuldb.com/vuln/365375/cti
signature
permissions-required
https://vuldb.com/submit/813569
third-party-advisory
https://github.com/carfeii/besen#finding-1-weak-authentication-mechanism-in-besen-home-ev-charging-station-via-ble
related
Hyperlink: https://vuldb.com/vuln/365375
Resource:
vdb-entry
Hyperlink: https://vuldb.com/vuln/365375/cti
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/submit/813569
Resource:
third-party-advisory
Hyperlink: https://github.com/carfeii/besen#finding-1-weak-authentication-mechanism-in-besen-home-ev-charging-station-via-ble
Resource:
related
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cna@vuldb.com
Published At:24 May, 2026 | 20:16
Updated At:24 May, 2026 | 20:16

A vulnerability was determined in Besen BS20 EV Charging Station up to 20260426. This impacts an unknown function of the component Bluetooth Low Energy Handler. Executing a manipulation can lead to weak password requirements. The attack needs to be done within the local network. This attack is characterized by high complexity. The exploitability is said 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."

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.01.3LOW
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary3.13.1LOW
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Secondary2.01.8LOW
AV:A/AC:H/Au:N/C:P/I:N/A:N
Type: Secondary
Version: 4.0
Base score: 1.3
Base severity: LOW
Vector:
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Primary
Version: 3.1
Base score: 3.1
Base severity: LOW
Vector:
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Type: Secondary
Version: 2.0
Base score: 1.8
Base severity: LOW
Vector:
AV:A/AC:H/Au:N/C:P/I:N/A:N
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-521Primarycna@vuldb.com
CWE ID: CWE-521
Type: Primary
Source: cna@vuldb.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/carfeii/besen#finding-1-weak-authentication-mechanism-in-besen-home-ev-charging-station-via-blecna@vuldb.com
N/A
https://vuldb.com/submit/813569cna@vuldb.com
N/A
https://vuldb.com/vuln/365375cna@vuldb.com
N/A
https://vuldb.com/vuln/365375/cticna@vuldb.com
N/A
Hyperlink: https://github.com/carfeii/besen#finding-1-weak-authentication-mechanism-in-besen-home-ev-charging-station-via-ble
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://vuldb.com/submit/813569
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://vuldb.com/vuln/365375
Source: cna@vuldb.com
Resource: N/A
Hyperlink: https://vuldb.com/vuln/365375/cti
Source: cna@vuldb.com
Resource: N/A

Change History

0
Information is not available yet

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