CVE-2022-34747 Other in Zyxel NAS326 firmware

Critical 9.8 Published 6 Sep 2022 Updated 3 Aug 2024

A format string vulnerability in Zyxel NAS firmware allows remote attackers to execute arbitrary code via crafted UDP packets.

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

What is CVE-2022-34747?

CVE-2022-34747 is a critical vulnerability in Zyxel NAS326 firmware, published on 6 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A format string vulnerability in Zyxel NAS326 firmware versions prior to V5.21(AAZF.12)C0 could allow an attacker to achieve unauthorized remote code execution via a crafted UDP packet.

Weakness: CWE-134

Which versions are affected by CVE-2022-34747?

It affects 1 product.

Products include Zyxel Nas326 Firmware.

How do I fix CVE-2022-34747?

No fix has been published for CVE-2022-34747 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-34747 being exploited?

There is no known exploitation of CVE-2022-34747 in the wild and no public exploit code.

Sources

Also known as GHSA-p6gf-558m-r8q3.