CVE-2025-14196CWE-119CWE-120

CVE-2025-14196

High · published December 7, 2025

CVSS v3.1
8.8
EPSS
1%
Percentile
44.0
In the wild
Unconfirmed
What it is

⚡ A sneaky buffer overflow flaw lurks in the H3C Magic B1 routers up to version 100R004! This vulnerability could grant attackers remote access, and it’s been made public. 🚨 Think of this vulnerability like a shipping container that was designed to hold a specific number of boxes. If someone keeps cramming in more boxes than it can handle, the container could burst open, spilling its contents everywhere! In this case, the overflowing data could let an attacker gain unauthorized access to the router's functions. An attacker could exploit this vulnerability and gain remote access to the router, allowing them to manipulate settings, intercept traffic, or launch attacks within the network. This could lead to an absolute chaos scenario, leaving your network vulnerable and exposed!

Put simply

Think of this vulnerability like a shipping container that was designed to hold a specific number of boxes. If someone keeps cramming in more boxes than it can handle, the container could burst open, spilling its contents everywhere! In this case, the overflowing data could let an attacker gain unauthorized access to the router's functions. This vulnerability arises from a buffer overflow in the function sub_44de0 of the /goform/aspForm file. By manipulating the 'param' argument, an attacker can execute arbitrary code on the device remotely, compromising its security.

What to do

An attacker could exploit this vulnerability and gain remote access to the router, allowing them to manipulate settings, intercept traffic, or launch attacks within the network. This could lead to an absolute chaos scenario, leaving your network vulnerable and exposed! To protect your devices, immediately update the H3C Magic B1 router to the latest firmware version beyond 100R004. Regularly check for updates and set up alerts for future patches. Additionally, monitor network traffic for any suspicious activity that may indicate exploitation attempts. You've got this! Stay vigilant and secure your network, and you'll have this vulnerability locked down in no time! 🛡️

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
0.00529 · 44.0th 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
2025-12-07T21:15Z
References (5)
EPSS history
Timeline
  • 07 DEC 15:32Z
    H3C Magic B1 aspForm sub_44de0 buffer overflow
    cvelistv5