CVE-2023-35966 Integer overflow in YF325

Critical 9.8 Published 11 Oct 2023 Updated 4 Nov 2025

An attacker can trigger heap buffer overflows via crafted network requests in the Yifan YF325 httpd manage_post functionality, potentially leading to code execution or denial of service.

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-2023-35966?

CVE-2023-35966 is a critical 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

Two heap-based buffer overflow vulnerabilities exist in the httpd manage_post functionality of Yifan YF325 v1.0_20221108. A specially crafted network request can lead to a heap buffer overflow. An attacker can send a network request to trigger these vulnerabilities.This integer overflow result is used as argument for the realloc function.

Weakness: CWE-787, CWE-190

Which versions are affected by CVE-2023-35966?

It affects 1 product.

Products include Yifanwireless Yf325 Firmware.

How do I fix CVE-2023-35966?

No fix has been published for CVE-2023-35966 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-35966 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-35966 exists.

Sources

Also known as GHSA-ww97-c23f-xww5.