CVE-2025-12273CWE-119CWE-120

CVE-2025-12273

High · published October 27, 2025

CVSS v3.1
8.8
EPSS
1%
Percentile
62.7
In the wild
Unconfirmed
What it is

⚡ A remote argument manipulation can trigger a buffer overflow in Tenda CH22’s web management! This vulnerability is like inviting a guest into your home and then leaving the door wide open for their entourage. 🔥 Think of the Tenda CH22 like a restaurant kitchen where a chef misreads an order and accidentally adds too much of a single ingredient, causing the dish to overflow. This buffer overflow allows an attacker to mess with the system, just like a kitchen disaster can ruin a meal! This vulnerability could allow an attacker to exploit the device remotely, leading to unexpected crashes or even to take over the device entirely. The potential for a malicious party to manipulate your router settings could be absolutely devastating to your network security!

Put simply

Think of the Tenda CH22 like a restaurant kitchen where a chef misreads an order and accidentally adds too much of a single ingredient, causing the dish to overflow. This buffer overflow allows an attacker to mess with the system, just like a kitchen disaster can ruin a meal! The vulnerability in Tenda CH22's web management interface occurs in the function fromwebExcptypemanFilter when an attacker manipulates the 'page' argument, causing a buffer overflow that can lead to arbitrary code execution or system compromise.

What to do

This vulnerability could allow an attacker to exploit the device remotely, leading to unexpected crashes or even to take over the device entirely. The potential for a malicious party to manipulate your router settings could be absolutely devastating to your network security! Immediately update your Tenda CH22 to version 1.0.0.2 to patch this vulnerability. Additionally, consider restricting access to the management interface to trusted IP addresses only for added security. 🛡️ You’ve got this! Follow these steps, and you’ll be one step closer to securing your network! ✨

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01006 · 62.7th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2025-10-27T17:15Z
Affected products (1)
ProductVersionsFixed in
tenda/ch22_firmwareall versions—
References (6)
EPSS history
Timeline
  • 27 OCT 12:32Z
    Tenda CH22 webExcptypemanFilter fromwebExcptypemanFilter buffer overflow
    cvelistv5