Vulnerability in Microsoft Windows Server 2016
CVE-2021-34458
Windows Kernel Remote Code Execution Vulnerability
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.026 (85.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
- Microsoft Windows Server 2016 — versions 10.0.14393.0, 10.0.0
- Microsoft Windows Server 2016 — versions 20h2, 2004
- Microsoft Windows Server 2016 (Server Core Installation) — versions 10.0.14393.0, 10.0.0
- Microsoft Windows Server 2019 — versions 10.0.0, 10.0.17763.0
- Microsoft Windows Server 2019
- Microsoft Windows Server 2019 (Server Core Installation) — versions 10.0.0, 10.0.17763.0
- Microsoft Windows Server Version 2004 — versions 10.0.0
- Microsoft Windows Server Version 20h2 — versions 10.0.0
References
- af854a3a-2127-422b-91ae-364da2661108 (Patch, Vendor Advisory)
- msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34458 (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2021-34458?
- CVE-2021-34458 is a critical-severity vulnerability in Microsoft Windows Server 2016. CVSS score: 9.9/10. Published 2021-07-16.
- How severe is CVE-2021-34458?
- Critical severity. CVSS v3 base score is 9.9 out of 10.