Description
Exposure of sensitive system information to an unauthorized control sphere in Windows Kernel allows an unauthorized attacker to disclose information locally.
Published: 2026-07-14
Score: 6.2 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

This vulnerability allows an attacker with local access to read sensitive information stored in the Windows kernel, exposing system internals such as configuration data and potentially privileged credentials. The flaw is an information‑exposure weakness referenced as CWE‑497.

Affected Systems

Affected products include Microsoft Windows 10 versions 1607, 1809, 21H2, 22H2; Windows 11 versions 24H2, 25H2, 26H1; and Windows Server 2012, 2012 R2, 2016, 2019, 2022, 2025, both full and Server Core installations. All enumerated builds are impacted by this kernel information‑disclosure flaw.

Risk and Exploitability

The CVSS score of 6.2 indicates moderate severity. The EPSS score is below 1 percent, meaning exploitation attempts are considered rare. The flaw is not part of the CISA KEV catalog. Based on the description, the likely attack vector is local execution. Exploitation requires local action by an unauthorized attacker, so restricting local privileged access can mitigate risk. No evidence of widespread exploitation is reported at this time.

Generated by OpenCVE AI on July 31, 2026 at 08:51 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the Microsoft security update for CVE‑2026‑50294 as released by Microsoft or via Windows Update.
  • Ensure that only trusted accounts have local administrator privileges to limit exposure of kernel information.
  • Review system logs for unusual access to kernel or configuration data to verify the effectiveness of privilege restrictions after patch deployment.

Generated by OpenCVE AI on July 31, 2026 at 08:51 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 16 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 14 Jul 2026 17:15:00 +0000

Type Values Removed Values Added
Description Exposure of sensitive system information to an unauthorized control sphere in Windows Kernel allows an unauthorized 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 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
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-497
CPEs 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:*:*:*:*:*:*: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:*:*:*:*:*:*:x64:*
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 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
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': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/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 24h2 Windows 11 25h2 Windows 11 26h1 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: 2026-08-03T22:54:24.920Z

Reserved: 2026-06-04T17:30:16.974Z

Link: CVE-2026-50294

cve-icon Vulnrichment

Updated: 2026-07-16T15:05:56.783Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-31T09:00:07Z

Weaknesses
  • CWE-497

    Exposure of Sensitive System Information to an Unauthorized Control Sphere