CVE-2021-40041: Huawei WS318N-21 Firmware

Medium severity, CVSS 4.2. EPSS: 0.2% chance of exploitation in the next 30 days.

There is a Cross-Site Scripting(XSS) vulnerability in HUAWEI WS318n product when processing network settings. Due to insufficient validation of user input, a local authenticated attacker could exploit this vulnerability by injecting special characters. Successful exploit could cause certain information disclosure. Affected product versions include: WS318n-21 10.0.2.2, 10.0.2.5 and 10.0.2.6.

Affected products

• Huawei WS318N-21 Firmware: version 10.0.2.2 only; version 10.0.2.5 only; version 10.0.2.6 only

Published 2022-01-10. Last modified 2026-06-17.