VDB-192537 · CVE-2022-21971 · GCVE-0-2022-21971

Microsoft Windows up to Server 2022 Runtime uninitialized pointer

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.
7.7	$5k-$25k	0.00

Summaryinfo

A vulnerability identified as very critical has been detected in Microsoft Windows up to Server 2022. This issue affects some unknown processing of the component Runtime. Performing a manipulation results in an unknown weakness. This vulnerability is reported as CVE-2022-21971. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability classified as very critical has been found in Microsoft Windows up to Server 2022 (Operating System). This affects some unknown functionality of the component Runtime. CWE is classifying the issue as CWE-824. The product accesses or uses a pointer that has not been initialized. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 02/08/2022 as confirmed security guidance (Website). The advisory is shared at portal.msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2022-21971. It demands that the victim is doing some kind of user interaction. Technical details are unknown but an exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 10/30/2025).

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 08/18/2022 with a due date of 09/08/2022:

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.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Operating System

Vendor

Microsoft

Name

Windows

Version

License

commercial

Website

Vendor: https://www.microsoft.com/
Product: https://www.microsoft.com/en-us/windows

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

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: 🔍

Exploitinginfo

Class: Uninitialized pointer
CWE: CWE-824 / CWE-908
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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

12/16/2021 🔍
02/08/2022 +54 days 🔍
02/08/2022 +0 days 🔍
02/08/2022 +0 days 🔍
10/30/2025 +1360 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

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

CVE: CVE-2022-21971 (🔍)
GCVE (CVE): GCVE-0-2022-21971
GCVE (VulDB): GCVE-100-192537
scip Labs: https://www.scip.ch/en/?labs.20161215

Entryinfo

Created: 02/08/2022 20:56
Updated: 10/30/2025 22:47
Changes: 02/08/2022 20:56 (34), 02/08/2022 21:00 (20), 02/12/2022 09:20 (2), 02/12/2022 09:23 (11), 04/27/2024 11:40 (30), 06/28/2024 23:16 (8), 09/23/2024 23:45 (1), 01/30/2025 02:49 (1), 05/01/2025 20:06 (3), 10/30/2025 22:47 (1)
Complete: 🔍
Cache ID: 216::103