CVE-2023-34346 Memory corruption in YF325

Critical 9.8 Published 11 Oct 2023 Updated 4 Nov 2025

A stack-based buffer overflow in the Yifan YF325 router allows remote attackers to execute arbitrary code via a crafted network packet.

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-2023-34346?

CVE-2023-34346 is a critical memory corruption vulnerability in Yifan YF325, published on 11 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A stack-based buffer overflow vulnerability exists in the httpd gwcfg.cgi get functionality of Yifan YF325 v1.0_20221108. A specially crafted network packet can lead to command execution. An attacker can send a network request to trigger this vulnerability.

Weakness: CWE-787, CWE-489

Which versions are affected by CVE-2023-34346?

It affects 1 product.

Products include Yifanwireless Yf325 Firmware.

How do I fix CVE-2023-34346?

No fix has been published for CVE-2023-34346 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-2023-34346 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-34346 exists.

Sources

Also known as GHSA-3vj3-3jw5-xpqc.