CVE-2025-53156

Local information disclosure via undisclosed driver flaw

Published Aug 12, 2025 · Updated Feb 13, 2026

Information disclosure in Microsoft Windows Storage Port Driver allows local users to read sensitive information on affected systems. Microsoft identifies the Storage Port Driver as the affected component but has not published the faulty operation or the data exposed. Exploitation requires low-privileged local access, needs no user interaction, and is limited to confidentiality loss with no reported data modification or service interruption.

CVSS severity5.5
Medium
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Microsoft Windows Storage Port Driver allows local users to read sensitive information on affected systems. Microsoft identifies the Storage Port Driver as the affected component but has not published the faulty operation or the data exposed. Exploitation requires low-privileged local access, needs no user interaction, and is limited to confidentiality loss with no reported data modification or service interruption.

The record

CVE
CVE-2025-53156
Published
Aug 12, 2025
Updated
Feb 13, 2026
Vendor
Microsoft
Product
Windows Server 2025 (Server Core installation)
Classifications
CWE-200, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.26100.0 <10.0.26100.4946

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Windows Server 2025 (Server Core installation)version=10.0.26100.0 <10.0.26100.4946
Microsoft · Windows 11, version 24H2version=10.0.26100.0 <10.0.26100.4946
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.1791
Microsoft · Windows Server 2025version=10.0.26100.0 <10.0.26100.4946

Published CVSS scores

5.5Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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