Summary
Bender is publishing this advisory to inform customers about a security vulnerability in the Charge Controller product families. Bender has analyzed the weakness and determined that the electrical safety of the devices is not affected. Bender considers the weakness to be of high risk and it should be patched immediately.
Details
Impact
Due to an unsecure default configuration HTTP is used instead of HTTPS for the web interface.
Mitigation
To use HTTPS on the web interface, enable it in the settings.
Vulnerabilities 1
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High 7.4
Cleartext Transmission of Sensitive Data via Insecure HTTP Web Interface
Due to an unsecure default configuration HTTP is used instead of HTTPS for the web interface. An unauthenticated attacker on the same network could exploit this to learn sensitive data during transmission.
Revision history
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#1
initial version
References
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VDE-2025-084: Bender Charge Controller Vulnerability - Unsecure Communication - HTML
https://certvde.com/en/advisories/VDE-2025-084/
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Vendor PSIRT
https://www.bender.de
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CERT@VDE Security Advisories for Bender GmbH & Co. KG
https://certvde.com/en/advisories/vendor/bender/