Microsoft Windows up to Server 2022 Hyper-V Discrete Device Assignment denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Microsoft Windows. Affected by this vulnerability is an unknown functionality of the component Hyper-V Discrete Device Assignment. The manipulation leads to denial of service. This vulnerability is referenced as CVE-2021-42274. The attack needs to be initiated within the local network. No exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Microsoft Windows (Operating System) and classified as critical. This issue affects some unknown processing of the component Hyper-V Discrete Device Assignment. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was published 11/09/2021 as confirmed security guidance (Website). It is possible to read the advisory at portal.msrc.microsoft.com. The identification of this vulnerability is CVE-2021-42274. The technical details are unknown and an exploit is not publicly available.

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.8
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 6.8
Vendor Vector (Microsoft): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

10/12/2021 🔍
11/09/2021 +28 days 🔍
11/09/2021 +0 days 🔍
11/10/2021 +0 days 🔍
11/12/2021 +1 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

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

CVE: CVE-2021-42274 (🔍)
GCVE (CVE): GCVE-0-2021-42274
GCVE (VulDB): GCVE-100-186395
scip Labs: https://www.scip.ch/en/?labs.20161215

Entryinfo

Created: 11/10/2021 08:25
Updated: 11/12/2021 00:24
Changes: 11/10/2021 08:25 (19), 11/10/2021 08:26 (16), 11/10/2021 08:29 (21), 11/12/2021 00:24 (2)
Complete: 🔍
Cache ID: 216::103

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