CVE-2021-31970
Windows TCP/IP Driver Security Feature Bypass Vulnerability
Windows TCP/IP Driver Security Feature Bypass Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows TCP/IP Driver Security Feature Bypass Vulnerability
Windows TCP/IP Driver Security Feature Bypass Vulnerability
- Record
CVE-2021-31970- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Weakness
- CWE-639
- Updated
- 2026-11-02
EUVDEUVD-2021-18842
Windows TCP/IP Driver Security Feature Bypass Vulnerability
- Record
EUVD-2021-18842- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jc6g-whc6-qfj3
Windows TCP/IP Driver Security Feature Bypass Vulnerability
Windows TCP/IP Driver Security Feature Bypass Vulnerability
- Record
GHSA-jc6g-whc6-qfj3- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-639
- Updated
- 2026-11-02
NVD
Windows TCP/IP Driver Security Feature Bypass Vulnerability
- Record
CVE-2021-31970- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-639
- Updated
- 2026-11-02
Affected products
- microsoft windows 10 version 1507
- microsoft windows 10 version 1607
- microsoft windows 10 version 1809
- microsoft windows 10 version 1909
- microsoft windows 10 version 2004
- microsoft windows 10 version 20h2
- microsoft windows 10 version 21h1
- microsoft windows 8.1
- microsoft windows server 2012
- microsoft windows server 2012 (server core installation)
- microsoft windows server 2012 r2
- microsoft windows server 2012 r2 (server core installation)
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History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-31970 is a medium vulnerability (CVSS 5.5) in Microsoft Windows 10 Version 1507, published June 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.85%, the 58th percentile. No source names a fixed version.