CVE-2023-41349: ASUS Rt-AX88U Firmware

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

ASUS router RT-AX88U has a vulnerability of using externally controllable format strings within its Advanced Open VPN function. An authenticated remote attacker can exploit the exported OpenVPN configuration to execute an externally-controlled format string attack, resulting in sensitivity information leakage, or forcing the device to reset and permanent denial of service.

Affected products

• ASUS Rt-AX88U Firmware: before 3.0.0.4.388.23748 (fixed in 3.0.0.4.388.23748)

Published 2023-09-18. Last modified 2026-06-17.