CVE-2022-25434: Tenda AC9 Firmware

Critical severity, CVSS 9.8. EPSS: 9.1% chance of exploitation in the next 30 days.

Tenda AC9 v15.03.2.21 was discovered to contain a stack overflow via the firewallen parameter in the SetFirewallCfg function.

Affected products

• Tenda AC9 Firmware: version 15.03.2.21 only

Published 2022-03-18. Last modified 2026-06-17.