CVE-2024-0816 Memory corruption in DX3300-T1 firmware

Medium 5.5 Published 21 May 2024 Updated 1 Aug 2024

An authenticated local attacker can cause denial of service on Zyxel DX3300-T1 devices by executing CLI commands with crafted strings.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-0816?

CVE-2024-0816 is a medium-severity memory corruption vulnerability in Zyxel DX3300-T1 firmware, published on 21 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The buffer overflow vulnerability in the DX3300-T1 firmware version V5.50(ABVY.4)C0 could allow an authenticated local attacker to cause denial of service (DoS) conditions by executing the CLI command with crafted strings on an affected device.

Weakness: CWE-120

Which versions are affected by CVE-2024-0816?

It affects 65 products.

Products include Zyxel Ax7501-B0 Firmware, Zyxel Ax7501-B1 Firmware, Zyxel Dx3300-T1 Firmware, Zyxel Dx3301-T0 Firmware, Zyxel Dx4510 Firmware, Zyxel Dx5401-B0 Firmware and 59 more.

How do I fix CVE-2024-0816?

No fix has been published for CVE-2024-0816 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-2024-0816 being exploited?

There is no known exploitation of CVE-2024-0816 in the wild and no public exploit code.

Sources

Also known as GHSA-rxw4-5vgr-mq26.