CVE-2023-28703: ASUS Rt-AC86U Firmware

High severity, CVSS 7.2. EPSS: 0.9% chance of exploitation in the next 30 days.

ASUS RT-AC86U’s specific cgi function has a stack-based buffer overflow vulnerability due to insufficient validation for network packet header length. A remote attacker with administrator privileges can exploit this vulnerability to execute arbitrary system commands, disrupt system or terminate service.

Affected products

• ASUS Rt-AC86U Firmware: version 3.0.0.4.386.51255 only

Published 2023-06-02. Last modified 2026-06-17.