CVE-2025-56266

A Host Header Injection vulnerability in Avigilon ACM v7.10.0.20 allows attackers to execute arbitrary code via supplying a crafted URL

Critical · published September 8, 2025

CVSS v3.1
9.8
EPSS
3%
Percentile
86.8
In the wild
Unconfirmed
What it is

🚨 A crafty URL holds the key to chaos! An attacker can manipulate the Host Header in Avigilon ACM v7.10.0.20 to execute arbitrary code, and that’s a recipe for disaster! 🔥 Think of this as a delivery service misreading the address on a package. Instead of checking the sender's details, they deliver it anywhere, potentially dropping it at the wrong doorstep, like an unfiltered request to your system. The consequences could be absolutely devastating! An attacker could gain control of the system, running any code they choose, leading to unauthorized access, data breaches, or even system outages. It's like handing over the keys to your kingdom!

Put simply

Think of this as a delivery service misreading the address on a package. Instead of checking the sender's details, they deliver it anywhere, potentially dropping it at the wrong doorstep, like an unfiltered request to your system. This Host Header Injection vulnerability allows attackers to exploit the web application's trust in the Host Header, enabling them to craft a malicious URL that the server unwittingly executes, leading to arbitrary code execution.

What to do

The consequences could be absolutely devastating! An attacker could gain control of the system, running any code they choose, leading to unauthorized access, data breaches, or even system outages. It's like handing over the keys to your kingdom! Immediately patch to version 7.10.0.21 to close this security hole. Additionally, consider implementing strict validation of all incoming URLs and Host Headers to ensure they meet expected values. Regular security audits will help keep your system fortified against such sneaky exploits. You’ve got this! By taking action now, you can protect your system and lock things down tight! 🛡️

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
0.02888 · 86.8th percentile
Published
2025-09-08T00:00Z
EPSS history
Timeline
  • 08 SEP 00:00Z
    A Host Header Injection vulnerability in Avigilon ACM v7.10.0.20 allows attackers to execute arbitrary code via supplying a crafted URL
    cvelistv5