May 2021: HTTP Protocol Stack Remote Code Execution Vulnerability
CVE-2021-31166 Published on May 11, 2021
HTTP Protocol Stack Remote Code Execution Vulnerability
HTTP Protocol Stack Remote Code Execution Vulnerability
Known Exploited Vulnerability
This Microsoft HTTP Protocol Stack Remote Code Execution Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Microsoft HTTP Protocol Stack contains a vulnerability in http.sys that allows for remote code execution.
The following remediation steps are recommended / required by April 27, 2022: Apply updates per vendor instructions.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2021-31166 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2021-31166
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-31166 are published in these products:
Affected Versions
Microsoft Windows 10 Version 2004:- Version 10.0.0 and below 10.0.19041.982 is affected.
- Version 10.0.0 and below 10.0.19041.982 is affected.
- Version 10.0.0 and below 10.0.19042.982 is affected.
- Version 10.0.0 and below 10.0.19042.982 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.