Microsoft Windows up to Server 2019 Storage Spaces Controller integer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Microsoft Windows up to Server 2019. This issue affects some unknown processing of the component Storage Spaces Controller. Executing a manipulation can lead to an unknown weakness. This vulnerability is registered as CVE-2021-34510. It is possible to launch the attack remotely. No exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability has been found in Microsoft Windows up to Server 2019 (Operating System) and classified as critical. This vulnerability affects some unknown functionality of the component Storage Spaces Controller. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Windows Storage Spaces Controller Elevation of Privilege Vulnerability

The weakness was published 07/13/2021 as confirmed security guidance (Website). The advisory is shared for download at portal.msrc.microsoft.com. This vulnerability was named CVE-2021-34510. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 08/11/2026).

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 7.5

VulDB Base Score: 8.8
VulDB Temp Score: 7.7
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): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

06/09/2021 🔍
07/13/2021 +34 days 🔍
07/13/2021 +0 days 🔍
07/14/2021 +0 days 🔍
08/11/2026 +1854 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

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

CVE: CVE-2021-34510 (🔍)
GCVE (CVE): GCVE-0-2021-34510
GCVE (VulDB): GCVE-100-178600
scip Labs: https://www.scip.ch/en/?labs.20161215

Entryinfo

Created: 07/14/2021 09:11
Updated: 08/11/2026 05:49
Changes: 07/14/2021 09:11 (21), 07/14/2021 09:12 (12), 07/14/2021 09:15 (22), 07/17/2021 15:52 (2), 08/11/2026 05:49 (44)
Complete: 🔍
Cache ID: 216::103

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