01 Record
CVE-2026-9398
Besen BS20 EV Charging Station BLE/WiFi authentication replay
LowPUBLISHEDCNA: VulDB
CNA base score2.3 CVSS v4.0CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
02 Description
Besen BS20 EV Charging Station BLE/WiFi authentication replay
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.29% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 21.8% of scored records. A rank, not a probability.
- NVD base score
- 1.3 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/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
- NVD analysis status
- Deferred. NVD last modified this record on 2026-07-23.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-05-24 20:45Z5 MO AGO
- Last updated
- 2026-05-29 18:17Z5 MO AGO
- Reserved
- 2026-05-24
- Assigning CNA
- VulDB
- Record state
- PUBLISHED
- Severity
- Low (CVSS 2.3)
- CNA CVSS vector
- CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- Weaknesses
- Data version
- 5.2
- Document digest
- 986cb5410f274df9b634d30909296bec7c2ae008d10708693fd6f18a764e62c2
05 Affected products
VendorProductVersionsPlatforms
06 References
- vuldb.comVDB-365379 | Besen BS20 EV Charging Station BLE/WiFi authentication replayhttps://vuldb.com/vuln/365379
- vuldb.comVDB-365379 | CTI Indicators (IOB, IOC, TTP)https://vuldb.com/vuln/365379/cti
- vuldb.comSubmit #813577 | Besen EV Charging Station BS20 EV Charger Improper Authorizationhttps://vuldb.com/submit/813577
- github.comhttps://github.com/carfeii/besen#finding-5-unauthorized-tampering-of-charger-commands