CVE-2021-20657: Contec Sv-Cpt-MC310 Firmware

Medium severity, CVSS 5.4. EPSS: 2.8% chance of exploitation in the next 30 days.

Improper access control vulnerability in SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an authenticated attacker to obtain and/or alter the setting information without the access privilege via unspecified vectors.

Affected products

• Contec Sv-Cpt-MC310 Firmware: before 6.5 (fixed in 6.5)

Published 2021-02-24. Last modified 2026-06-17.