Description
Exposure of sensitive information to an unauthorized actor in Windows Win32K allows an authorized attacker to disclose information locally.
Published: 2026-07-14
Score: 3.3 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

An authorized local attacker can trigger an exposed Win32K interface, causing the Windows kernel to reveal sensitive information. The vulnerability is classified as Information Exposure (CWE‑200). Because execution occurs with the privilege level of the user running the operation, the attacker can only access data that requires the same local authorization, limiting the impact to local confidentiality rather than remote code execution or system-wide compromise.

Affected Systems

Microsoft Windows 11 versions 24H2, 25H2, and 26H1, as well as Windows Server 2025 (including Server Core installations).

Risk and Exploitability

The attack vector is local and requires authorized local access. The CVSS score of 3.3 and an EPSS score of less than 1 % indicate low severity and a very low probability of exploitation. The vulnerability is not listed in the CISA KEV catalog, which further reduces the risk surface for most environments.

Generated by OpenCVE AI on July 31, 2026 at 08:17 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Monitor Microsoft Security Bulletins and the Windows Update log for a patch that addresses CVE‑2026‑50416.
  • Configure Windows Update to automatically download and install security releases to close the vulnerability as soon as a fix is available.
  • Restrict use of local privileged accounts and enforce the principle of least privilege to limit the potential for exposure by authorized users.

Generated by OpenCVE AI on July 31, 2026 at 08:17 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 15 Jul 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 14 Jul 2026 17:45:00 +0000

Type Values Removed Values Added
Description Exposure of sensitive information to an unauthorized actor in Windows Win32K allows an authorized attacker to disclose information locally.
Title Win32k Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows Server 2025
Weaknesses CWE-200
CPEs 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_2025:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows Server 2025
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Windows 11 24h2 Windows 11 25h2 Windows 11 26h1 Windows Server 2025
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-08-03T22:59:18.342Z

Reserved: 2026-06-04T18:56:53.259Z

Link: CVE-2026-50416

cve-icon Vulnrichment

Updated: 2026-07-14T19:25:39.830Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-31T08:30:03Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor