9.8

CVE-2021-31166

Warnung
HTTP Protocol Stack Remote Code Execution Vulnerability
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Microsoft ≫ Windows 10 2004 Version < 10.0.19041.982
Microsoft ≫ Windows 10 20h2 Version < 10.0.19042.982
Microsoft ≫ Windows Server 2004 Version < 10.0.19041.982
Microsoft ≫ Windows Server 20h2 Version < 10.0.19042.982

06.04.2022: CISA Known Exploited Vulnerabilities (KEV) Catalog

Microsoft HTTP Protocol Stack Remote Code Execution Vulnerability

Schwachstelle

Microsoft HTTP Protocol Stack contains a vulnerability in http.sys that allows for remote code execution.

Beschreibung

Apply updates per vendor instructions.

Erforderliche Maßnahmen
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 93.07% 0.998
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
secure@microsoft.com 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.