CVE-2023-4121: Byzoro Smart s85f

Critical severity, CVSS 9.8. EPSS: 2.5% chance of exploitation in the next 30 days.

A vulnerability was found in Byzoro Smart S85F Management Platform up to 20230722. It has been classified as critical. Affected is an unknown function. The manipulation of the argument file_upload leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-235968. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Byzoro Smart s85f: up to and including 20230722

Published 2023-08-03. Last modified 2026-06-17.