VulnerabilityModified

CVE-2023-21551

Microsoft Cryptographic Services Elevation of Privilege Vulnerability

HIGH 7.8EPSS 0.43%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Microsoft Cryptographic Services Elevation of Privilege Vulnerability

CVSS 3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.43% probability · 37th percentile
CISA KEV: Not listed
Weakness: CWE-416, CWE-269
Affected: microsoft/windows 10 1809 · microsoft/windows 10 20h2 · microsoft/windows 10 21h2 · microsoft/windows 10 22h2 · microsoft/windows 11 21h2 · microsoft/windows 11 22h2 · microsoft/windows server 2019 · microsoft/windows server 2022
Source: secure@microsoft.com

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21551
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21551

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