CVE-2023-6274: Byzoro Smart s80 Firmware

Critical severity, CVSS 9.8. EPSS: 2.9% chance of exploitation in the next 30 days.

A vulnerability was found in Byzoro Smart S80 up to 20231108. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /sysmanage/updatelib.php of the component PHP File Handler. The manipulation of the argument file_upload leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-246103. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Byzoro Smart s80 Firmware: up to and including 2023-11-08

Published 2023-11-24. Last modified 2026-06-17.