CVE-2026-9396: Improper Restriction of Rendered UI Layers in Besen BS20 EV Charging Station
CVE-2026-9396 is a medium-severity vulnerability affecting the Besen BS20 EV Charging Station firmware up to version 20260426. It involves improper restriction of rendered UI layers in the Firmware Version Check component, which can be exploited remotely. The attack complexity is high, making exploitation difficult. As of the latest update, Besen has acknowledged the issue and is reviewing it, but no official patch or remediation has been announced yet.
AI Analysis
Technical Summary
This vulnerability in the Besen BS20 EV Charging Station firmware (up to version 20260426) concerns improper restriction of rendered UI layers within the Firmware Version Check component. The flaw allows remote attackers to manipulate the UI rendering, potentially affecting the device's interface security. The attack requires high complexity and no privileges or user interaction are needed. The vendor has acknowledged the vulnerability and is currently reviewing it, but no fix has been released as of the publication date.
Potential Impact
The vulnerability could allow a remote attacker to manipulate the rendered UI layers of the charging station, potentially leading to unauthorized UI behavior or misleading information display. However, the attack complexity is high, and no known exploits are reported in the wild. The impact is rated medium based on the CVSS score of 6.3.
Mitigation Recommendations
As of now, no official patch or remediation is available. The vendor Besen has acknowledged the vulnerability and is reviewing it as of April 2026. Users and administrators should monitor vendor communications for updates and apply any future patches promptly. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-9396: Improper Restriction of Rendered UI Layers in Besen BS20 EV Charging Station
Description
CVE-2026-9396 is a medium-severity vulnerability affecting the Besen BS20 EV Charging Station firmware up to version 20260426. It involves improper restriction of rendered UI layers in the Firmware Version Check component, which can be exploited remotely. The attack complexity is high, making exploitation difficult. As of the latest update, Besen has acknowledged the issue and is reviewing it, but no official patch or remediation has been announced yet.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in the Besen BS20 EV Charging Station firmware (up to version 20260426) concerns improper restriction of rendered UI layers within the Firmware Version Check component. The flaw allows remote attackers to manipulate the UI rendering, potentially affecting the device's interface security. The attack requires high complexity and no privileges or user interaction are needed. The vendor has acknowledged the vulnerability and is currently reviewing it, but no fix has been released as of the publication date.
Potential Impact
The vulnerability could allow a remote attacker to manipulate the rendered UI layers of the charging station, potentially leading to unauthorized UI behavior or misleading information display. However, the attack complexity is high, and no known exploits are reported in the wild. The impact is rated medium based on the CVSS score of 6.3.
Mitigation Recommendations
As of now, no official patch or remediation is available. The vendor Besen has acknowledged the vulnerability and is reviewing it as of April 2026. Users and administrators should monitor vendor communications for updates and apply any future patches promptly. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-24T06:18:58.081Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a136221a5ae1af1aad05181
Added to database: 5/24/2026, 8:40:01 PM
Last enriched: 5/24/2026, 8:54:56 PM
Last updated: 5/24/2026, 9:59:42 PM
Views: 4
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