Microsoft Windows up to Server 2019 Hyper-V Local Privilege Escalation
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.8 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, was found in Microsoft Windows up to Server 2019. Affected is an unknown function of the component Hyper-V. Executing a manipulation can lead to an unknown weakness. This vulnerability is registered as CVE-2021-28314. The attack needs to be launched locally. No exploit is available. A patch should be applied to remediate this issue.
Details
A vulnerability has been found in Microsoft Windows up to Server 2019 (Operating System) and classified as critical. This vulnerability affects some unknown functionality of the component Hyper-V. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was published 04/13/2021 as confirmed security guidance (Website). The advisory is available at portal.msrc.microsoft.com. This vulnerability was named CVE-2021-28314. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/14/2021).
Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.microsoft.com/
- Product: https://www.microsoft.com/en-us/windows
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.8VulDB Meta Temp Score: 6.8
VulDB Base Score: 7.8
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
Vendor Base Score (Microsoft): 7.8
Vendor Vector (Microsoft): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Local Privilege EscalationCWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
Remote: No
Availability: 🔍
Status: Unproven
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Timeline
03/12/2021 🔍04/13/2021 🔍
04/13/2021 🔍
04/14/2021 🔍
04/17/2021 🔍
Sources
Vendor: microsoft.comProduct: microsoft.com
Advisory: portal.msrc.microsoft.com
Status: Confirmed
CVE: CVE-2021-28314 (🔍)
GCVE (CVE): GCVE-0-2021-28314
GCVE (VulDB): GCVE-100-172930
scip Labs: https://www.scip.ch/en/?labs.20161215
Entry
Created: 04/14/2021 06:38Updated: 04/17/2021 09:43
Changes: 04/14/2021 06:38 (35), 04/14/2021 06:42 (20), 04/17/2021 09:43 (2)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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