01 Record
CVE-2021-31970
Windows TCP/IP Driver Security Feature Bypass Vulnerability
MediumPUBLISHEDCNA: microsoft
CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
02 Description
Windows TCP/IP Driver Security Feature Bypass Vulnerability
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.85% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 58.1% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-06-08 22:46Z5 YR AGO
- Last updated
- 2024-08-03 23:10Z2 YR AGO
- Reserved
- 2021-04-30
- Assigning CNA
- microsoft
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.5)
- CNA CVSS vector
- 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
- Weaknesses
- CWE-639Authorization Bypass Through User-Controlled KeyBase
- Data version
- 5.1
- Document digest
- aa810a66dc988754960970120ad22cc16df030635751601961e042bf38733dab
05 Affected products
VendorProductVersionsPlatforms
MicrosoftWindows 10 Version 180910.0.0 to < 10.0.17763.199932-bit Systems, x64-based Systems, ARM64-based Systems
MicrosoftWindows 10 Version 190910.0.0 to < 10.0.18363.162132-bit Systems, x64-based Systems, ARM64-based Systems
MicrosoftWindows 10 Version 21H110.0.0 to < 10.0.19043.1052x64-based Systems, ARM64-based Systems, 32-bit Systems
MicrosoftWindows 10 Version 200410.0.0 to < 10.0.19041.105232-bit Systems, ARM64-based Systems, x64-based Systems
MicrosoftWindows 8.16.3.0 to < 6.3.9600.20045, 6.3.0 to < 6.3.9600.2004432-bit Systems, x64-based Systems, ARM64-based Systems
MicrosoftWindows Server 2012 R26.3.0 to < 6.3.9600.20045, 6.3.0 to < 6.3.9600.20044x64-based Systems
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.0 to < 6.3.9600.20045, 6.3.0 to < 6.3.9600.20044x64-based Systems