CVE-2023-26978

TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the pppoeAcName parameter at /setting/setWanIeCfg

Critical · published April 7, 2023

CVSS v3.1
9.8
EPSS
2%
Percentile
79.7
In the wild
Unconfirmed
What it is

🚨 A simple command injection puts your TOTOlink A7100RU router at risk! Just by tampering with a single parameter, an attacker can take control. 🔥 Think of your router as the main entrance to your digital home. If there's an unlocked backdoor, an intruder can walk right in, changing the Wi-Fi settings or accessing all your connected devices without breaking a sweat. This command injection vulnerability could allow an attacker to execute arbitrary commands on your router. As a result, they could alter network configurations, undermine security, and even monitor traffic — truly devastating! Your entire home network could become a playground for a malicious intruder.

Put simply

Think of your router as the main entrance to your digital home. If there's an unlocked backdoor, an intruder can walk right in, changing the Wi-Fi settings or accessing all your connected devices without breaking a sweat. The vulnerability exists in the pppoeAcName parameter in TOTOlink A7100RU V7.4cu.2313_B20191024, where improper sanitization enables command injection, allowing remote attackers to execute arbitrary code.

What to do

This command injection vulnerability could allow an attacker to execute arbitrary commands on your router. As a result, they could alter network configurations, undermine security, and even monitor traffic — truly devastating! Your entire home network could become a playground for a malicious intruder. To protect your network, update your router’s firmware to the latest version immediately. Ensure the vulnerable version is no longer in use and consider changing your default credentials for added security. You’ve got this! Follow these steps, and you’ll have your router secured in no time. 🛡️

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
0.01920 · 79.7th percentile
Published
2023-04-07T00:00Z
EPSS history
Timeline
  • 07 APR 00:00Z
    TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the pppoeAcName parameter at /setting/setWanIeCfg
    cvelistv5