Description
Use of uninitialized resource in Windows Kernel-Mode Drivers allows an authorized attacker to disclose information locally.
Published: 2026-10-13
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Local Information Disclosure
Action: Apply Patch
AI Analysis

Impact

The vulnerability arises from the use of uninitialized memory in Windows kernel-mode drivers. An attacker with local, authenticated access can exploit this flaw to read data that should not be exposed, resulting in a local information disclosure incident. The weakness corresponds to CWE-908, indicating a misuse of uninitialized resources that can expose sensitive information.

Affected Systems

Microsoft Windows 11 version 26H1 on arm64 architecture is affected. No other vendors or product versions are listed for this CVE.

Risk and Exploitability

The CVSS score of 5.5 reflects moderate severity. Because EPSS data is unavailable, the likelihood of exploitation is unknown, and the vulnerability is not listed in the CISA KEV catalog. Attackers are limited to local, authenticated execution on the vulnerable host, which permits disclosure of confidential memory data but does not provide privilege escalation or remote code execution.

Generated by OpenCVE AI on October 14, 2026 at 14:20 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Install the Microsoft security update that resolves the uninitialized resource issue in Windows 11 26H1.
  • Limit local administrative privileges to reduce the opportunity for an authorized attacker to exploit the driver flaw.
  • Deploy runtime protection or kernel integrity monitoring to detect abnormal kernel-mode driver activity.

Generated by OpenCVE AI on October 14, 2026 at 14:20 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 16 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft windows 11 26h1
CPEs cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
Vendors & Products Microsoft windows 11 26h1

Wed, 14 Oct 2026 00:30:00 +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-Mode Drivers allows an authorized attacker to disclose information locally.
Title Windows Kernel-Mode Drivers Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft windows 11 26h1
Weaknesses CWE-908
CPEs cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:arm64:*
Vendors & Products Microsoft
Microsoft windows 11 26h1
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 11 26h1 Windows 11 26h1
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-31T18:07:01.800Z

Reserved: 2026-09-23T18:05:21.200Z

Link: CVE-2026-96849

cve-icon Vulnrichment

Updated: 2026-10-13T19:42:50.336Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-13T19:21:58.213

Modified: 2026-10-16T19:25:32.647

Link: CVE-2026-96849

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-17T04:30:02Z

Weaknesses
  • CWE-908

    Use of Uninitialized Resource