CVE-2024-54803

Netgear WNR854T 1.5.2 (North America) is vulnerable to Command Injection

Critical · published March 31, 2025

CVSS v3.1
9.8
EPSS
2%
Percentile
76.5
In the wild
Unconfirmed
What it is

🔥 One crafted request is all it takes to exploit this command injection flaw in Netgear's WNR854T router—fingers crossed, it won’t reboot your entire network! Think of it like a chef who gets a phone call with a secret recipe change—if they trust the caller without verifying, they might end up ruining dinner. In this case, the router gets tricked into executing commands it shouldn’t, leading to a surprising reboot! An attacker could force your router to reboot by injecting harmful commands, potentially leading to unauthorized access or disruption of service. Imagine losing your internet connectivity just because someone sent a sneaky request! This could lead to further attacks on your network if they gain a foothold.

Put simply

Think of it like a chef who gets a phone call with a secret recipe change—if they trust the caller without verifying, they might end up ruining dinner. In this case, the router gets tricked into executing commands it shouldn’t, leading to a surprising reboot! This command injection vulnerability affects Netgear WNR854T (version 1.5.2 for North America) via the post.cgi script, where an attacker can manipulate the nvram parameter, specifically pppoe_peer_mac, causing the device to execute commands it normally wouldn’t.

What to do

An attacker could force your router to reboot by injecting harmful commands, potentially leading to unauthorized access or disruption of service. Imagine losing your internet connectivity just because someone sent a sneaky request! This could lead to further attacks on your network if they gain a foothold. To secure your device, patch your router immediately to the latest firmware version. If the update isn’t available yet, consider disabling remote management features to reduce exposure until you can apply the fix. Don't forget to check your router settings and ensure strong passwords are in place! You've got this! With these steps, you'll be on your way to securing your network 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
0.01660 · 76.5th percentile
Published
2025-03-31T00:00Z
EPSS history
Timeline
  • 31 MAR 00:00Z
    Netgear WNR854T 1.5.2 (North America) is vulnerable to Command Injection
    cvelistv5