CVE-2021-33842: Circutor Sge-PLC1000 Firmware

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Improper Authentication vulnerability in the cookie parameter of Circutor SGE-PLC1000 firmware version 0.9.2b allows an attacker to perform operations as an authenticated user. In order to exploit this vulnerability, the attacker must be within the network where the device affected is located.

Affected products

• Circutor Sge-PLC1000 Firmware: version 0.9.2b only

Published 2021-06-09. Last modified 2026-06-17.