CVE-2022-21907

HTTP Protocol Stack Remote Code Execution Vulnerability

Critical · published January 11, 2022

Patch now

High probability of exploitation

CVSS calls it critical at 9.8. It sits in the 99.8th percentile for exploit probability.

CVSS v3.1
9.8
EPSS
93%
Percentile
99.8
In the wild
Unconfirmed
What it is

🚨 A single malicious HTTP request is all it takes to execute code remotely! This vulnerability in the HTTP Protocol Stack is a security giant lurking in your network. 🔥 Think of it like a delivery service that accepts unverified packages. If they don’t check what’s inside, an attacker could slip in a dangerous item, allowing them to manipulate the entire operation from behind the scenes! If exploited, an attacker could take control of your systems, running any code they wish — reading sensitive files, altering data, or even bringing down services entirely. The potential for devastation is absolutely staggering!

Put simply

Think of it like a delivery service that accepts unverified packages. If they don’t check what’s inside, an attacker could slip in a dangerous item, allowing them to manipulate the entire operation from behind the scenes! This vulnerability allows remote code execution via crafted HTTP requests, exploiting a flaw in how the HTTP Protocol Stack processes incoming data. As a result, the system may execute unauthorized commands without proper checks.

What to do

If exploited, an attacker could take control of your systems, running any code they wish — reading sensitive files, altering data, or even bringing down services entirely. The potential for devastation is absolutely staggering! Immediate action is crucial! Patch your affected systems to the latest version as per vendor instructions. Ensure that network permissions are strictly controlled to limit access until a fix is applied.🛡️ You've got this! With these steps, you can secure your systems and keep your network 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/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.92790 · 99.8th percentile
Published
2022-01-11T20:23Z
EPSS history
Timeline
  • 11 JAN 20:23Z
    HTTP Protocol Stack Remote Code Execution Vulnerability
    cvelistv5