Microsoft Windows 8.1/10/10 1607/Server 2012 R2/Server 2016 Hyper-V 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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A vulnerability, which was classified as critical, was found in Microsoft Windows 8.1/10/10 1607/Server 2012 R2/Server 2016 (Operating System). This affects an unknown functionality of the component Hyper-V. 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 weakness was disclosed 01/12/2021 as confirmed security guidance (Website). The advisory is shared at portal.msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2021-1692 since 12/02/2020. The exploitability is told to be easy. It is possible to initiate the attack remotely. The successful exploitation needs a authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 02/11/2021). 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.
CVSSv3VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 6.7
VulDB Base Score: 7.7
VulDB Temp Score: 6.7
VulDB Vector: 🔒
VulDB Reliability: 🔍
Vendor Base Score (Microsoft): 7.7
Vendor Vector (Microsoft): 🔒
NVD Base Score: 7.7
NVD Vector: 🔒
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
NVD Base Score: 🔒
ExploitingClass: Denial of service
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceThreat: 🔍
Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒
Timeline12/02/2020 CVE assigned
01/12/2021 +41 days Advisory disclosed
01/12/2021 +0 days Countermeasure disclosed
01/13/2021 +0 days VulDB entry created
02/11/2021 +29 days VulDB last update
CVE: CVE-2021-1692 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20161215
EntryCreated: 01/13/2021 07:54 AM
Updated: 02/11/2021 08:05 PM
Changes: (16) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
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