CVE-2022-40876

In Tenda ax1803 v1.0.0.1, the http requests handled by the fromAdvSetMacMtuWan functions, wanSpeed, cloneType, mac, can cause a stack overflow and enable…

Critical · published October 27, 2022

CVSS v3.1
9.8
EPSS
2%
Percentile
80.1
In the wild
Unconfirmed
What it is

🔥 A single HTTP request could unleash a stack overflow nightmare! In Tenda ax1803 v1.0.0.1, mishandled parameters can lead to remote code execution — all without a password! Think of it like a waiter at a restaurant who takes your order but miswrites it so badly that the whole kitchen can only guess what you wanted. This confusion could allow an attacker to send commands as if they were you, leading to a chaotic meal! An attacker exploiting this vulnerability could gain full control of the router, possibly intercepting data, altering configurations, or launching attacks on other networked devices — absolutely devastating! With such power, they could make the network dance to their tune, allowing for data theft and system compromise.

Put simply

Think of it like a waiter at a restaurant who takes your order but miswrites it so badly that the whole kitchen can only guess what you wanted. This confusion could allow an attacker to send commands as if they were you, leading to a chaotic meal! This critical vulnerability arises from stack overflow issues in the fromAdvSetMacMtuWan function handling specific HTTP request parameters, enabling attackers to execute arbitrary code remotely — a serious misstep in input validation!

What to do

An attacker exploiting this vulnerability could gain full control of the router, possibly intercepting data, altering configurations, or launching attacks on other networked devices — absolutely devastating! With such power, they could make the network dance to their tune, allowing for data theft and system compromise. Update your Tenda ax1803 firmware to version 1.0.0.2 immediately to patch this vulnerability. Ensure that your network settings are configured securely and monitor for any suspicious activities regularly. You've got this! Stay vigilant, follow the steps, and keep your network safe! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01951 · 80.1th percentile
Published
2022-10-27T00:00Z
EPSS history
Timeline
  • 27 OCT 00:00Z
    In Tenda ax1803 v1.0.0.1, the http requests handled by the fromAdvSetMacMtuWan functions, wanSpeed, cloneType, mac, can cause a stack overflow and enable…
    cvelistv5