Microsoft Windows up to Server 2025 Cloud Files Mini Filter Driver insufficient privileges

CVSS Meta Temp Score
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CTI Interest Score
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7.1$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Microsoft Windows. Impacted is an unknown function of the component Cloud Files Mini Filter Driver. This manipulation causes insufficient privileges. This vulnerability is handled as CVE-2025-50170. It is possible to launch the attack on the local host. There is not any exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability has been found in Microsoft Windows and classified as critical. Affected by this vulnerability is an unknown functionality of the component Cloud Files Mini Filter Driver. The manipulation with an unknown input leads to a insufficient privileges vulnerability. The CWE definition for the vulnerability is CWE-280. The product does not handle or incorrectly handles when it has insufficient privileges to access resources or functionality as specified by their permissions. This may cause it to follow unexpected code paths that may leave the product in an invalid state. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Improper handling of insufficient permissions or privileges in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

The weakness was released 08/12/2025 as confirmed security update guide (Website). The advisory is shared at msrc.microsoft.com. This vulnerability is known as CVE-2025-50170. The exploitation appears to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/22/2025). MITRE ATT&CK project uses the attack technique T1222 for this issue.

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 vulnerability database at CERT Bund (WID-SEC-2025-1790). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Hitachi Virtual Storage Platform
  • Microsoft Windows Server 2022
  • Microsoft Windows Server
  • Microsoft Windows 10
  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2019
  • Microsoft Windows 11
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2025
  • Microsoft Windows

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.8
VulDB Temp Score: 6.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

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

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

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Insufficient privileges
CWE: CWE-280 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

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

08/12/2025 VulDB entry created
08/12/2025 +0 days Advisory disclosed
08/12/2025 +0 days Countermeasure disclosed
11/22/2025 +101 days VulDB entry last update

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: msrc.microsoft.com
Status: Confirmed

CVE: CVE-2025-50170 (🔒)
GCVE (CVE): GCVE-0-2025-50170
GCVE (VulDB): GCVE-100-319621
CERT Bund: WID-SEC-2025-1790 - Microsoft Windows und Windows Server: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20161215

Entryinfo

Created: 08/12/2025 19:31
Updated: 11/22/2025 05:55
Changes: 08/12/2025 19:31 (33), 08/12/2025 19:32 (2), 08/12/2025 19:35 (34), 08/20/2025 03:28 (12), 11/22/2025 05:55 (7)
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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