# CVE-2026-9396

## Summary

- **CVE ID:** CVE-2026-9396
- **Severity:** MEDIUM
- **CVSS Score:** 6.3 (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)
- **CWE:** CWE-1021
- **Published:** May 24, 2026
- **Last Modified:** May 26, 2026

## 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."

## Affected Products

- Besen — BS20 EV Charging Station (20260426)

## References

- [CNA](https://vuldb.com/vuln/365377)
- [CNA](https://vuldb.com/vuln/365377/cti)
- [CNA](https://vuldb.com/submit/813575)
- [CNA](https://github.com/carfeii/besen#finding-3-firmware-version-check-manipulation-and-ui-spoofing)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.27%
- **EPSS Percentile:** 18.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._