Microsoft Windows 10 20H2 up to Server 2019 Console Driver denial of service

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CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

A vulnerability classified as problematic has been found in Microsoft Windows 10 20H2 up to Server 2019 (Operating System). This affects some unknown functionality of the component Console Driver. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. This is going to have an impact on availability. The summary by CVE is:

Windows Console Driver Denial of Service Vulnerability This CVE ID is unique from CVE-2021-28443.

The weakness was released 04/13/2021 as confirmed security guidance (Website). The advisory is shared at portal.msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2021-28438 since 03/15/2021. The exploitability is told to be easy. An attack has to be approached locally. A authentication is required for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/16/2021). MITRE ATT&CK project uses the attack technique T1499 for this issue.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

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CPE 2.3infoedit

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CVSSv3infoedit

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.0
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 5.5
Vendor Vector (Microsoft): 🔒

CVSSv2infoedit

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: Yes
Remote: No

Availability: 🔒
Status: Unproven

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Threat: 🔍
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Remediation: 🔍

Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒

Patch: portal.msrc.microsoft.com

Timelineinfoedit

03/15/2021 CVE assigned
04/13/2021 +29 days VulDB entry created
04/13/2021 +0 days Advisory disclosed
04/13/2021 +0 days Countermeasure disclosed
04/16/2021 +3 days VulDB last update

Sourcesinfoedit

Vendor: https://www.microsoft.com/
Product: https://www.microsoft.com/en-us/windows

Advisory: portal.msrc.microsoft.com
Status: Confirmed

CVE: CVE-2021-28438 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20161215

Entryinfoedit

Created: 04/13/2021 11:05 PM
Updated: 04/16/2021 06:18 PM
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍

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