Microsoft Windows up to Server 2022 Datacenter Azure Edition CNG Key Isolation Service out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.7$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as very critical, has been found in Microsoft Windows. Affected is an unknown function of the component CNG Key Isolation Service. The manipulation leads to an unknown weakness. This vulnerability is traded as CVE-2022-41125. It is possible to initiate the attack remotely. Furthermore, there is an exploit 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 very critical. This issue affects an unknown functionality of the component CNG Key Isolation Service. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Windows CNG Key Isolation Service Elevation of Privilege Vulnerability

The weakness was shared 11/08/2022 as confirmed security guidance (Website). It is possible to read the advisory at portal.msrc.microsoft.com. The identification of this vulnerability is CVE-2022-41125. Technical details are unknown but an exploit is available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/29/2026).

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 11/08/2022 with a due date of 12/09/2022:

Apply updates per vendor instructions.

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

The vulnerability is also documented in the databases at Zero-Day.cz (730) and EUVD (EUVD-2022-44368). 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: 8.1
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 7.8
Vendor Vector (Microsoft): 🔍

CNA Base Score: 7.8
CNA Vector (Microsoft): 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Zero-Day.cz: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

09/19/2022 🔍
11/08/2022 +50 days 🔍
11/08/2022 +0 days 🔍
11/08/2022 +0 days 🔍
07/29/2026 +1359 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

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

CVE: CVE-2022-41125 (🔍)
GCVE (CVE): GCVE-0-2022-41125
GCVE (VulDB): GCVE-100-213179
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161215

Entryinfo

Created: 11/08/2022 21:09
Updated: 07/29/2026 15:06
Changes: 11/08/2022 21:09 (8), 11/08/2022 21:10 (27), 11/08/2022 21:13 (19), 12/10/2022 14:27 (2), 12/10/2022 14:30 (11), 04/27/2024 20:59 (29), 06/16/2024 03:57 (2), 06/29/2024 03:20 (1), 09/26/2024 00:32 (2), 02/24/2025 20:59 (1), 10/31/2025 00:17 (1), 07/29/2026 15:06 (1)
Complete: 🔍
Cache ID: 216::103

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

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