VulnerabilityModified

CVE-2023-21539

Windows Authentication Remote Code Execution Vulnerability

HIGH 7.5EPSS 1.16%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Windows Authentication Remote Code Execution Vulnerability

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 1.16% probability · 65th percentile
CISA KEV: Not listed
Weakness: CWE-125
Affected: microsoft/windows 10 20h2 · microsoft/windows 10 21h2 · microsoft/windows 10 22h2 · microsoft/windows 11 21h2 · microsoft/windows 11 22h2 · microsoft/windows server 2022
Source: secure@microsoft.com

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21539
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21539

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.