CVE-2020-10886CWE-78

This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 routers

High · published March 25, 2020

CVSS v3.0
8.1
EPSS
5%
Percentile
92.1
In the wild
Unconfirmed
What it is

🚨 A small oversight in TP-Link Archer A7 routers could let anyone with a grudge execute arbitrary code! 😱 Think of it like a restaurant chef who takes a phone order without checking details—anyone can call in and ask for whatever they want. If the chef doesn't verify those claims, they might end up cooking a surprise dish that wasn't on the menu! This vulnerability allows attackers to run harmful code on your router, essentially giving them control to spy on your network, redirect traffic, or worse! Without proper authentication, it’s like leaving the backdoor to your house wide open—anyone could walk in and wreak havoc. 🔥

Put simply

Think of it like a restaurant chef who takes a phone order without checking details—anyone can call in and ask for whatever they want. If the chef doesn't verify those claims, they might end up cooking a surprise dish that wasn't on the menu! The flaw arises in the tmpServer service listening on TCP port 20002. Since it fails to properly validate user input before executing system calls, an attacker can send crafted strings that lead to arbitrary code execution.

What to do

This vulnerability allows attackers to run harmful code on your router, essentially giving them control to spy on your network, redirect traffic, or worse! Without proper authentication, it’s like leaving the backdoor to your house wide open—anyone could walk in and wreak havoc. 🔥 To protect yourself, update the TP-Link Archer A7 firmware to the latest version available and consider closing off access to unused ports. Regularly check for firmware updates to keep your defenses strong! You've got this! With a few simple updates, you'll keep your network safe and sound. 🛡️

The record
Technical detail
CVSS v3.0
8.1 · HIGH
Vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.04951 · 92.1th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2020-03-25T19:15Z
EPSS history
Timeline
  • 25 MAR 19:15Z
    This vulnerability allows remote attackers to execute arbitrary code on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 routers
    cvelistv5