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CVE-2021-31166 Remote code execution

Immediate
Remediate Within 48 Hours

CVE Information

Original CVE data

Published:
Updated:

HTTP Protocol Stack Remote Code Execution Vulnerability

CWE: CWE-416
CVSS v27.5
AV:N/AC:L/AU:N/C:P/I:P/A:P
CVSS v39.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31166
http://packetstormsecurity.com/files/162722/Microsoft-HTTP-Protocol-Stack-Remote-Code-Execution.html
Affected Vendors

Microsoft - (4)

Basic Analysis

Common vulnerability metrics

Vulnerabilty type as detected by PRIOnengine

Remote code execution

CVSS Scores as calculated by PRIOnengine
CVSS v27.5
AV:N/AC:L/AU:N/C:P/I:P/A:P
CVSS v39.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
MITRE CWE Top 25

Vulnerability weakness type is in the top 25 CWEs according to MITRE. View Mitre Top 25 CWEs

Exploits

Exploits are available either through exploit packs, Github repos or the world wide web in general.

Active Exploitation

Vulnerability is referenced under CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog

Social Network Activity

-

Threat Actor Activity

No sightings of the vulnerability within threat reports.

Cybersecurity Frameworks

How the vulnerability maps against various cybersecurity frameworks

T1499.004 - Endpoint Denial of Service (Application or System Exploitation)
T1203 - Exploitation for Client Execution
T1059 - Command and Scripting Interpreter

Compliance Impact

How the submited vulnerability affects compliance

-

Web Application Security Frameworks

Applicable if the issue likely affects a web application

-