CVE-2025-61609

In modem, there is a possible system crash due to improper input validation

High · published December 1, 2025

CVSS v3.1
7.5
EPSS
0%
Percentile
16.1
In the wild
Unconfirmed
What it is

⚡ A single rogue input can bring your modem to its knees! This vulnerability allows for a remote denial of service that could crash your system without needing any extra privileges. 🔥 Think of it like a restaurant where a customer orders a dish that the chef can't handle. One bad request, and the whole kitchen shuts down, leaving everyone hungry! An attacker could send a malformed request that triggers a system crash, resulting in a complete denial of service. This means your devices could become unresponsive, disrupting your internet access and leading to a frustrating experience for all users.

Put simply

Think of it like a restaurant where a customer orders a dish that the chef can't handle. One bad request, and the whole kitchen shuts down, leaving everyone hungry! This vulnerability in the modem comes from improper input validation, allowing malicious input to cause a system crash. Essentially, it's a failure to check that the incoming requests are safe before processing them.

What to do

An attacker could send a malformed request that triggers a system crash, resulting in a complete denial of service. This means your devices could become unresponsive, disrupting your internet access and leading to a frustrating experience for all users. To mitigate this issue, update your modem's firmware to the latest version as soon as it's available. Additionally, review your device's configuration to ensure it's set to reject improper inputs, bolstering its defenses. You've got this! With a quick firmware update, you'll be back to surfing the web in no time. 🛡️

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00255 · 16.1th percentile
Published
2025-12-01T07:36Z
EPSS history
Timeline
  • 01 DEC 07:36Z
    In modem, there is a possible system crash due to improper input validation
    cvelistv5