CVE-2023-28703 ASUS RT-AC86U - Buffer Overflow

High 7.2 Published 2 Jun 2023 Updated 8 Jan 2025

A remote attacker with admin privileges can execute arbitrary commands or cause denial of service via a stack-based buffer overflow in the router's CGI function.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-28703?

CVE-2023-28703 is a high-severity memory corruption vulnerability in ASUS RT-AC86U, published on 2 Jun 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

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.

Weakness: CWE-121

Which versions are affected by CVE-2023-28703?

It affects 1 product.

Products include Asus Rt-Ac86u Firmware.

How do I fix CVE-2023-28703?

No fix has been published for CVE-2023-28703 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-28703 being exploited?

There is no known exploitation of CVE-2023-28703 in the wild and no public exploit code.

Sources

Also known as GHSA-2pwg-h86c-qrp2.