Vulnerability in Microsoft Windows 10
CVE-2021-26866
Windows Update Service Elevation of Privilege Vulnerability
EPSS: 0.011 (62.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
Affected products
- Microsoft Windows_10 — versions 20h2, 1607, 1803
- Microsoft Windows 10 Version 1507 — versions 10.0.0
- Microsoft Windows 10 Version 1607 — versions 10.0.0
- Microsoft Windows 10 Version 1803 — versions 10.0.0
- Microsoft Windows 10 Version 1809 — versions 10.0.0
- Microsoft Windows 10 Version 1909 — versions 10.0.0
- Microsoft Windows 10 Version 2004 — versions 10.0.0
- Microsoft Windows 10 Version 20h2 — versions 10.0.0
- Microsoft Windows Server 2016 — versions 10.0.0
- Microsoft Windows_server_2016 — versions 20h2, 1909, 2004
Weakness classification (CWE)
References
- secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)
- secure@microsoft.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-26866?
- CVE-2021-26866 is a high-severity vulnerability in Microsoft Windows 10, classified under Improper Link Resolution Before File Access. CVSS score: 7.1/10. Published 2021-03-11.
- How severe is CVE-2021-26866?
- High severity. CVSS v3 base score is 7.1 out of 10.