CVE-2024-51139

Buffer Overflow vulnerability in Vigor2620/LTE200 3.9.8.9 and earlier and Vigor2860/2925 3.9.8 and earlier and Vigor2862/2926 3.9.9.5 and earlier and…

Critical · published February 27, 2025

CVSS v3.1
9.8
EPSS
1%
Percentile
62.3
In the wild
Unconfirmed
What it is

🔥 A simple HTTP POST request can lead to a devastating buffer overflow in various Vigor routers! Think of it like a restaurant where a waiter miscalculates a customer's order, bringing in way too many dishes and causing the kitchen to overflow — chaos ensues as the chef struggles to manage the mess! If exploited, an attacker could run arbitrary code on your router, potentially gaining full control over your network. This could lead to data theft, unauthorized access to connected devices, and even turning your router into a launching point for further attacks!

Put simply

Think of it like a restaurant where a waiter miscalculates a customer's order, bringing in way too many dishes and causing the kitchen to overflow — chaos ensues as the chef struggles to manage the mess! This vulnerability occurs due to improper handling of the 'Content-Length' header in the CGI parser of multiple Vigor router models, leading to a buffer overflow that can be triggered by a specially crafted HTTP POST request.

What to do

If exploited, an attacker could run arbitrary code on your router, potentially gaining full control over your network. This could lead to data theft, unauthorized access to connected devices, and even turning your router into a launching point for further attacks! Immediate action is required: patch your devices to the latest firmware versions, specifically Vigor2620/LTE200 3.9.8.10 or later, Vigor2860/2925 3.9.9 or later, and others as specified. Additionally, review your network configurations for any unusual activity. You've got this! Follow these steps to secure your network and be the hero that keeps your digital world 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
0.00995 · 62.3th percentile
Published
2025-02-27T00:00Z
EPSS history
Timeline
  • 27 FEB 00:00Z
    Buffer Overflow vulnerability in Vigor2620/LTE200 3.9.8.9 and earlier and Vigor2860/2925 3.9.8 and earlier and Vigor2862/2926 3.9.9.5 and earlier and…
    cvelistv5