CVE-2023-21547

Internet Key Exchange (IKE) Protocol Denial of Service Vulnerability

Description

Internet Key Exchange (IKE) Protocol Denial of Service Vulnerability

Categories

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 7.55% Top 10%
Vendor Advisory microsoft.com
Affected: Microsoft Windows 10 Version 1809
Affected: Microsoft Windows 10 Version 1809
Affected: Microsoft Windows Server 2019
Affected: Microsoft Windows Server 2019 (Server Core installation)
Affected: Microsoft Windows Server 2022
Affected: Microsoft Windows 10 Version 20H2
Affected: Microsoft Windows 11 version 21H2
Affected: Microsoft Windows 10 Version 21H2
Affected: Microsoft Windows 11 version 22H2
Affected: Microsoft Windows 10 Version 22H2
Affected: Microsoft Windows 10 Version 1507
Affected: Microsoft Windows 10 Version 1607
Affected: Microsoft Windows Server 2016
Affected: Microsoft Windows Server 2016 (Server Core installation)
Published at:
Updated at:

References

Link Tags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21547 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-21547?
CVE-2023-21547 has been scored as a high severity vulnerability.
How to fix CVE-2023-21547?
To fix CVE-2023-21547, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-21547 being actively exploited in the wild?
It is possible that CVE-2023-21547 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~8% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-21547?
CVE-2023-21547 affects Microsoft Windows 10 Version 1809, Microsoft Windows 10 Version 1809, Microsoft Windows Server 2019, Microsoft Windows Server 2019 (Server Core installation), Microsoft Windows Server 2022, Microsoft Windows 10 Version 20H2, Microsoft Windows 11 version 21H2, Microsoft Windows 10 Version 21H2, Microsoft Windows 11 version 22H2, Microsoft Windows 10 Version 22H2, Microsoft Windows 10 Version 1507, Microsoft Windows 10 Version 1607, Microsoft Windows Server 2016, Microsoft Windows Server 2016 (Server Core installation).
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