Microsoft Windows up to Server 2022 Support Diagnostic Tool Follina external reference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Microsoft Windows. Impacted is an unknown function of the component Support Diagnostic Tool. The manipulation leads to an unknown weakness. This vulnerability is traded as CVE-2022-30190. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. It is suggested to update the configuration settings.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Windows (Operating System). This issue affects some unknown functionality of the component Support Diagnostic Tool. Using CWE to declare the problem leads to CWE-610. The product uses an externally controlled name or reference that resolves to a resource that is outside of the intended control sphere. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application such as Word. An attacker who successfully exploits this vulnerability can run arbitrary code with the privileges of the calling application. The attacker can then install programs, view, change, or delete data, or create new accounts in the context allowed by the user’s rights. Please see the MSRC Blog Entry for important information about steps you can take to protect your system from this vulnerability.

The weakness was shared 05/31/2022 by crazyman with Shadow Chaser Group as confirmed tweet (Twitter). The advisory is shared at twitter.com. The identification of this vulnerability is CVE-2022-30190. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available.

The exploit is available at app.box.com. It is declared as attacked. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $25k-$100k. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 06/14/2022 with a due date of 07/05/2022:

Apply updates per vendor instructions.

It is possible to mitigate the problem by applying the configuration setting reg delete HKEY_CLASSES_ROOT\ms-msdt /f.

The vulnerability is also documented in the vulnerability database at Zero-Day.cz (703). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Microsoft Office

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CPE 2.3info

CPE 2.2info

Video

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

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

NVD Base Score: 7.8
NVD Vector: 🔍

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

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: External reference
CWE: CWE-610
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Download: 🔍

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: Config
Status: 🔍

0-Day Time: 🔍

Config: reg delete HKEY_CLASSES_ROOT\ms-msdt /f
Workaround: msrc-blog.microsoft.com

Timelineinfo

05/03/2022 🔍
05/30/2022 +27 days 🔍
05/31/2022 +1 days 🔍
05/31/2022 +0 days 🔍
10/30/2025 +1248 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: twitter.com
Researcher: crazyman
Organization: Shadow Chaser Group
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-30190 (🔍)
GCVE (CVE): GCVE-0-2022-30190
GCVE (VulDB): GCVE-100-200909
scip Labs: https://www.scip.ch/en/?labs.20161215

Entryinfo

Created: 05/31/2022 07:51
Updated: 10/30/2025 22:55
Changes: 05/31/2022 07:51 (37), 05/31/2022 07:52 (3), 05/31/2022 13:11 (1), 06/01/2022 00:40 (2), 06/01/2022 22:27 (1), 06/02/2022 08:41 (39), 06/04/2022 08:59 (2), 06/04/2022 09:03 (8), 04/27/2024 07:42 (23), 06/19/2024 01:56 (2), 06/28/2024 23:51 (13), 09/22/2024 23:32 (2), 05/01/2025 01:48 (3), 05/12/2025 21:38 (1), 10/30/2025 22:55 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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