What is the CVSS score of CVE-2021-43228?

CVE-2021-43228 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 3.7%.

Is there a patch available for CVE-2021-43228?

Yes, a patch is available for CVE-2021-43228. Update the affected software to the latest version immediately.

Windows Server 2016 CVE-2021-43228

HIGH

2021-12-15 secure@microsoft.com

Denial Of Service Microsoft Windows Server 2016 Windows Server 2019 Windows 10 Windows Server Windows 11

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Dec 15, 2021 - 15:15 nvd

HIGH 7.5

DescriptionNVD

SymCrypt Denial of Service Vulnerability

AnalysisAI

SymCrypt Denial of Service Vulnerability. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

Affected products include: Microsoft Windows 10, Microsoft Windows 11, Microsoft Windows Server, Microsoft Windows Server 2016, Microsoft Windows Server 2019.

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.

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CVE-2021-43228 vulnerability details – vuln.today

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Windows Server 2016 CVE-2021-43228

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

More in Windows Server 2016

Same technique Denial Of Service

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External POC / Exploit Code