CVE-2026-50463

Analyzed Analyzed - Analysis Complete

Out-of-bounds Read in Windows Kernel

Publication date: 2026-07-14

Last updated on: 2026-07-22

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Windows Kernel allows an unauthorized attacker to disclose information over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-14

Last Modified

2026-07-22

Generated

2026-08-03

AI Q&A

2026-07-15

EPSS Evaluated

2026-08-02

NVD

CVE-2026-50463

EUVD

EUVD-2026-43918

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_11_26h1	to 10.0.28000.2269 (exc)
microsoft	windows_10_1809	to 10.0.17763.9020 (exc)
microsoft	windows_10_1809	to 10.0.17763.9020 (exc)
microsoft	windows_server_2019	to 10.0.17763.9020 (exc)
microsoft	windows_server_2022	to 10.0.20348.5386 (exc)
microsoft	windows_server_2025	to 10.0.26100.33158 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2525 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7548 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7548 (exc)
microsoft	windows_11_24h2	to 10.0.26100.8875 (exc)
microsoft	windows_11_25h2	to 10.0.26200.8875 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This is an out-of-bounds read vulnerability in the Windows Kernel. It allows an unauthorized attacker to access and disclose information over a network without needing special privileges or user interaction.

Impact Analysis

An attacker could exploit this to read sensitive data from memory, potentially exposing confidential information such as credentials or personal data stored in memory.

Compliance Impact

This vulnerability could lead to unauthorized data disclosure, which may violate GDPR (data protection) and HIPAA (health information privacy) requirements, potentially resulting in legal penalties or compliance violations.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows Kernel vulnerability. Monitor Microsoft's security advisories for updates and ensure all systems are updated promptly.

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