CVE-2021-20636: Logitech Lan-w300n/pr5b Firmware

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Cross-site request forgery (CSRF) vulnerability in LOGITEC LAN-W300N/PR5B allows remote attackers to hijack the authentication of administrators via a specially crafted URL. As a result, unintended operations to the device such as changes of the device settings may be conducted.

Affected products

• Logitech Lan-w300n/pr5b Firmware: affected versions not specified

Published 2021-02-12. Last modified 2026-06-17.