What is the CVSS score of CVE-2021-41357?

CVE-2021-41357 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.0%.

Is CVE-2021-41357 being actively exploited?

Yes, CVE-2021-41357 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, confirming active in-the-wild exploitation. Immediate patching is required.

Is there a patch available for CVE-2021-41357?

Yes, a patch is available for CVE-2021-41357. Update the affected software to the latest version immediately.

Windows 10 2004 CVE-2021-41357

HIGH

2021-10-13 secure@microsoft.com

Information Disclosure Windows 10 2004 Windows 10 20H2 Windows 10 21H1 Windows 11 21H2 Windows Server 2004 Windows Server 2022 Windows Server 20H2

7.8

CVSS 3.1 · Vendor: microsoft

Severity by source

Vendor (microsoft) PRIMARY

7.8 HIGH

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Added to CISA KEV

Jul 14, 2026 - 04:22 CISA

CVE Published

Oct 13, 2021 - 01:15 cve.org

HIGH 7.8

DescriptionCVE.org

Win32k Elevation of Privilege Vulnerability

AnalysisAI

Win32k Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.

Technical ContextAI

Affected products include: Microsoft Windows 10 2004, Microsoft Windows 10 20H2, Microsoft Windows 10 21H1, Microsoft Windows 11 21H2, Microsoft Windows Server 2004.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

More in Windows 10 2004

View all

CVE-2021-40449 HIGH Act Now POC

7.8 Oct 13

Win32k Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity

CVE-2021-1675 HIGH Act Now POC

7.8 Jun 08

Windows Print Spooler Remote Code Execution Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is no auth

CVE-2021-31166 CRITICAL Act Now POC

9.8 May 11

HTTP Protocol Stack Remote Code Execution Vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remot

CVE-2020-1464 HIGH This Week POC

7.8 Aug 17

A spoofing vulnerability exists when Windows incorrectly validates file signatures. Rated high severity (CVSS 7.8), this

CVE-2021-33739 HIGH This Week

8.4 Jun 08

Microsoft DWM Core Library Elevation of Privilege Vulnerability. Rated high severity (CVSS 8.4), this vulnerability is n

CVE-2021-43226 HIGH This Week

7.8 Dec 15

Windows Common Log File System Driver Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnera

CVE-2021-40450 HIGH This Week

7.8 Oct 13

Win32k Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity

CVE-2021-36955 HIGH This Week

7.8 Sep 15

Windows Common Log File System Driver Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnera

CVE-2021-36948 HIGH This Week

7.8 Aug 12

Windows Update Medic Service Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is

CVE-2021-34486 HIGH This Week

7.8 Aug 12

Windows Event Tracing Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low at

CVE-2021-34484 HIGH This Week

7.8 Aug 12

Windows User Profile Service Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is

CVE-2021-33771 HIGH This Week

7.8 Jul 14

Windows Kernel Elevation of Privilege Vulnerability. Rated high severity (CVSS 7.8), this vulnerability is low attack co

Same technique Information Disclosure

View all

CVE-2013-2251 CRITICAL POC

9.8

CVE-2017-5638 CRITICAL POC

9.8

CVE-2025-24813 CRITICAL POC

9.8

CVE-2015-1701 HIGH POC

7.8

CVE-2017-0147 HIGH POC

7.5

CVE-2014-6324 HIGH POC

8.8

CVE-2023-7028 CRITICAL POC

10.0

CVE-2017-0213 HIGH POC

7.3

CVE-2021-41357 vulnerability details – vuln.today

Back

Windows 10 2004 CVE-2021-41357

Severity by source

CVSS VectorVendor: microsoft

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

More in Windows 10 2004

Same technique Information Disclosure

Share

External POC / Exploit Code