VulnerabilityModified
CVE-2021-31961
Windows InstallService Elevation of Privilege Vulnerability
MEDIUM 6.1EPSS 0.80%
Does this matter?
Lower severity and a low EPSS score (0.80%). Track it; it rarely justifies an emergency change on its own.
Description
Windows InstallService Elevation of Privilege Vulnerability
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
- EPSS
- 0.80% probability · 55th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-269
- Affected
- microsoft/windows 10 · microsoft/windows server 2016 · microsoft/windows server 2019
- Source
- secure@microsoft.com
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31961
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31961Patch, Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-818/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.