Microsoft Windows Server 20H2 up to Server 2016 DNS Server Remote Code Execution
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.5 | $5k-$25k | 0.00 |
A vulnerability was found in Microsoft Windows (Operating System). It has been declared as very critical. This vulnerability affects some unknown functionality of the component DNS Server. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was presented 03/09/2021 as confirmed security guidance (Website). The advisory is available at portal.msrc.microsoft.com. This vulnerability was named CVE-2021-26894. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 03/30/2021).
Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.
See VDB-233693, VDB-233694, VDB-233695 and VDB-259973 for similar entries.
Product
Type
Vendor
Name
Version
- Server 20H2
- Server 1909
- Server 2004
- Server 2008 R2 SP1
- Server 2008 SP2
- Server 2012
- Server 2012 R2
- Server 2016
- Server 2019
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 9.8VulDB Meta Temp Score: 8.9
VulDB Base Score: 9.8
VulDB Temp Score: 8.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
Vendor Base Score (Microsoft): 9.8
Vendor Vector (Microsoft): 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
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: 🔍
NVD Base Score: 🔍
Exploiting
Class: Remote Code ExecutionCWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
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
02/08/2021 🔍03/09/2021 🔍
03/09/2021 🔍
03/10/2021 🔍
03/30/2021 🔍
Sources
Vendor: microsoft.comProduct: microsoft.com
Advisory: portal.msrc.microsoft.com
Status: Confirmed
CVE: CVE-2021-26894 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20140213
See also: 🔍
Entry
Created: 03/10/2021 12:39Updated: 03/30/2021 13:49
Changes: 03/10/2021 12:39 (33), 03/10/2021 12:43 (21), 03/30/2021 13:46 (2), 03/30/2021 13:49 (16)
Complete: 🔍
Cache ID: 3:E22:103
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