Buffer overflow in Microsoft Windows 10
CVE-2021-31977
Windows Hyper-V Denial of Service Vulnerability
Vulnerability class: Buffer Overflow
EPSS: 0.032 (86.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Microsoft Windows_10 — versions 20h2, 21h1, 1607
- Microsoft Windows 10 Version 1507 — versions 10.0.0
- Microsoft Windows 10 Version 1607 — 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 21h1 — versions 10.0.0
- Microsoft Windows Server 2016 — versions 10.0.0
- Microsoft Windows_server_2016 — versions 20h2, 1909, 2004
- Microsoft Windows Server 2016 (Server Core Installation) — versions 10.0.0
Weakness classification (CWE)
References
- secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-31977?
- CVE-2021-31977 is a high-severity vulnerability in Microsoft Windows 10, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.6/10. Published 2021-06-08.
- How severe is CVE-2021-31977?
- High severity. CVSS v3 base score is 8.6 out of 10.