Auth bypass in Microsoft Windows 10
CVE-2021-27086
Windows Services and Controller App Elevation of Privilege Vulnerability
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (53.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Microsoft Windows 10 — versions 20h2, 1803, 1809
- 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 20h2, 1909, 2004
- Microsoft Windows Server 2019 — versions 10.0.0
- Microsoft Windows Server 2019
- Microsoft Windows Server 2019 (Server Core Installation) — versions 10.0.0
Weakness classification (CWE)
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27086 (Patch, Vendor Advisory)
- packetstormsecurity.com/files/162157/Microsoft-Windows-SCM-Remote-Access-Check-… (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27086?
- CVE-2021-27086 is a high-severity vulnerability in Microsoft Windows 10, classified under Incorrect Authorization. CVSS score: 7.8/10. Published 2021-04-13.
- How severe is CVE-2021-27086?
- High severity. CVSS v3 base score is 7.8 out of 10.