7.5
CWE
822
Advisory Published
Updated

CVE-2023-21677: Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability

First published: Tue Jan 10 2023(Updated: )

Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability

Credit: secure@microsoft.com secure@microsoft.com

Affected SoftwareAffected VersionHow to fix
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10=1809
Microsoft Windows 10=21H2
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2012 R2
Microsoft Windows 10=1607
Microsoft Windows 10=1809
Microsoft Windows 10=22H2
Microsoft Windows 10=22H2
Microsoft Windows 10=20H2
Microsoft Windows 10=21H2
Microsoft Windows 10=22H2
Microsoft Windows 10=1809
Microsoft Windows 10=1607
Microsoft Windows 10=20H2
Microsoft Windows 10=21H2
Microsoft Windows RT
Microsoft Windows Server
Microsoft Windows Server
Microsoft Windows 8.1
Microsoft Windows 8.1
Microsoft Windows Server 2016
Microsoft Windows Server 2016
Microsoft Windows Server 2019
Microsoft Windows Server 2019
Windows 11=22H2
Windows 11=22H2
Windows 11=21H2
Windows 11=21H2
Microsoft Windows Server 2022
Microsoft Windows Server 2022
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows 10
Windows 11
Windows 11
Windows 11
Windows 11
Microsoft Windows Server
Microsoft Windows Server=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2019
Microsoft Windows Server 2022

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Frequently Asked Questions

  • What is the severity of CVE-2023-21677?

    CVE-2023-21677 is rated as a high severity vulnerability.

  • How do I fix CVE-2023-21677?

    To fix CVE-2023-21677, apply the latest security updates from Microsoft that specifically address this vulnerability.

  • What systems are affected by CVE-2023-21677?

    CVE-2023-21677 affects various versions of Windows 10, Windows 11, and Windows Server 2016, 2019, and 2022.

  • What is the nature of the vulnerability in CVE-2023-21677?

    CVE-2023-21677 is a Denial of Service vulnerability affecting the Internet Key Exchange (IKE) extension implementation.

  • Can CVE-2023-21677 be exploited remotely?

    Yes, CVE-2023-21677 can potentially be exploited remotely, leading to service disruption for affected systems.

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