Description
Use of uninitialized resource in Windows Kernel allows an authorized attacker to disclose information locally.
Published: 2026-10-13
Score: 5.5 Medium
EPSS: n/a
KEV: No
Impact: Local Information Disclosure
Action: Assess Impact
AI Analysis

Impact

The vulnerability is a Windows kernel flaw that occurs due to an uninitialized resource. It allows an attacker with local authorization to read sensitive data from memory, compromising confidentiality. The flaw maps to CWE‑908 (use of uninitialized variable).

Affected Systems

Affected systems include Microsoft Windows 10 (versions 1607, 1809, 21H2, 22H2) and Windows 11 (versions 23H2, 24H2, 25H2, 26H2, 26H1). Server editions impacted are Windows Server 2012, 2016, 2019, 2022, and 2025. The precise product versions are listed in the CNA data; all listed releases are considered vulnerable.

Risk and Exploitability

The vulnerability has a CVSS score of 5.5, indicating moderate severity. EPSS score is not available and the flaw is not listed in CISA's KEV catalog. The attack vector is inferred to be local authorization or privilege; an attacker must be able to execute code or otherwise trigger the kernel bug on an affected Windows version. No remote exploitation paths are documented.

Generated by OpenCVE AI on October 13, 2026 at 21:23 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the Microsoft update that addresses CVE‑2026‑102187, as published in the Microsoft Security Update Guide.
  • Restrict privileged local user accounts and limit the execution of applications with elevated privileges to reduce the opportunity for the kernel bug to be triggered.
  • Monitor system logs for anomalous kernel activity and maintain a timely patch management process to address future security updates.

Generated by OpenCVE AI on October 13, 2026 at 21:23 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Tue, 13 Oct 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Use of uninitialized resource in Windows Kernel allows an authorized attacker to disclose information locally.
Title Windows Kernel Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft windows 10 1607
Microsoft windows 10 1809
Microsoft windows 10 21h2
Microsoft windows 10 22h2
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows 11 Version 26h2 For Arm64-based Systems
Microsoft windows Server 2012
Microsoft windows Server 2012 R2
Microsoft windows Server 2016
Microsoft windows Server 2019
Microsoft windows Server 2022
Microsoft windows Server 2025
Weaknesses CWE-908
CPEs cpe:2.3:a:microsoft:windows_11_version_26h2_for_arm64-based_systems:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x86:*
cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows 10 1607
Microsoft windows 10 1809
Microsoft windows 10 21h2
Microsoft windows 10 22h2
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows 11 Version 26h2 For Arm64-based Systems
Microsoft windows Server 2012
Microsoft windows Server 2012 R2
Microsoft windows Server 2016
Microsoft windows Server 2019
Microsoft windows Server 2022
Microsoft windows Server 2025
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C'}

Subscriptions

Microsoft Windows 10 1607 Windows 10 1809 Windows 10 21h2 Windows 10 22h2 Windows 11 23h2 Windows 11 24h2 Windows 11 25h2 Windows 11 26h1 Windows 11 Version 26h2 For Arm64-based Systems Windows Server 2012 Windows Server 2012 R2 Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows Server 2025
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-13T22:25:12.920Z

Reserved: 2026-09-28T18:20:51.762Z

Link: CVE-2026-102187

cve-icon Vulnrichment

Updated: 2026-10-13T21:17:47.724Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-13T19:17:43.150

Modified: 2026-10-13T22:17:15.470

Link: CVE-2026-102187

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-13T21:30:17Z

Weaknesses
  • CWE-908

    Use of Uninitialized Resource