VulnerabilityModified

CVE-2021-42283

NTFS Elevation of Privilege Vulnerability

HIGH 8.8EPSS 0.48%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.48%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

NTFS Elevation of Privilege Vulnerability

CVSS 3.1: 8.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS: 0.48% probability · 40th percentile
CISA KEV: Not listed
Weakness: CWE-269
Affected: microsoft/windows 10 · microsoft/windows 11 · microsoft/windows 7 · microsoft/windows rt 8.1 · microsoft/windows server · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019 · microsoft/windows server 2022
Source: secure@microsoft.com

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42283
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42283Patch, Vendor Advisory

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