|CVSS Meta Temp Score|
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
|Current Exploit Price (≈)|
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
|CTI Interest Score|
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
A vulnerability, which was classified as critical, was found in Microsoft Windows (Operating System). This affects an unknown code block of the component AppContainer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
Windows AppContainer Elevation Of Privilege Vulnerability
The weakness was disclosed 10/12/2021 as confirmed security guidance (Website). It is possible to read the advisory at portal.msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2021-40476 since 09/02/2021. The exploitability is told to be easy. It is possible to initiate the attack remotely. The requirement for exploitation is a authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $25k-$100k at the moment (estimation calculated on 10/15/2021).
It is declared as proof-of-concept.
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: 8.2
VulDB Meta Temp Score: 7.3
VulDB Base Score: 8.8
VulDB Temp Score: 7.9
VulDB Vector: 🔒
VulDB Reliability: 🔍
Vendor Base Score (Microsoft): 7.5
Vendor Vector (Microsoft): 🔒
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceInterest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍
Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒
Timeline09/02/2021 CVE assigned
10/12/2021 +40 days VulDB entry created
10/12/2021 +0 days Advisory disclosed
10/12/2021 +0 days Countermeasure disclosed
10/15/2021 +3 days VulDB last update
CVE: CVE-2021-40476 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20161215
EntryCreated: 10/12/2021 09:51 PM
Updated: 10/15/2021 12:45 PM
Changes: (2) source_cve_assigned source_cve_nvd_summary
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