CVE-2021-20730: Buffalo Wsr-1166dhp3 Firmware

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Improper access control vulnerability in WSR-1166DHP3 firmware Ver.1.16 and prior and WSR-1166DHP4 firmware Ver.1.02 and prior allows an attacker to obtain configuration information via unspecified vectors.

Affected products

• Buffalo Wsr-1166dhp3 Firmware: up to and including 1.16
• Buffalo Wsr-1166dhp4 Firmware: up to and including 1.02

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