CVE-2020-23591: Optilinknetwork Op-XT71000N Firmware

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

A vulnerability in OPTILINK OP-XT71000N Hardware Version: V2.2 , Firmware Version: OP_V3.3.1-191028 allows an attacker to upload arbitrary files through " /mgm_dev_upgrade.asp " which can "delete every file for Denial of Service (using 'rm -rf *.*' in the code), reverse connection (using '.asp' webshell), backdoor.

Affected products

• Optilinknetwork Op-XT71000N Firmware: version 3.3.1-191028 only

Published 2022-11-23. Last modified 2026-06-17.