CVE-2026-45604

Analyzed Analyzed - Analysis Complete

Out-of-bounds Read in Windows Application Identity Subsystem

Publication date: 2026-06-09

Last updated on: 2026-06-11

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Windows Application Identity (AppID) Subsystem allows an authorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-09

Last Modified

2026-06-11

Generated

2026-06-30

AI Q&A

2026-06-09

EPSS Evaluated

2026-06-28

NVD

CVE-2026-45604

EUVD

EUVD-2026-35553

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_11_23h2	to 10.0.22631.7219 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7219 (exc)
microsoft	windows_11_24h2	to 10.0.26100.8655 (exc)
microsoft	windows_11_24h2	to 10.0.26100.8655 (exc)
microsoft	windows_11_25h2	to 10.0.26200.8655 (exc)
microsoft	windows_11_25h2	to 10.0.26200.8655 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2269 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2269 (exc)
microsoft	windows_server_2025	to 10.0.26100.32995 (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 vulnerability is an out-of-bounds read in the Windows Application Identity (AppID) Subsystem. It allows an authorized attacker to read memory outside the intended bounds, which can lead to the disclosure of sensitive information locally on the affected system.

Impact Analysis

The impact of this vulnerability is information disclosure. An authorized attacker could exploit this flaw to access sensitive information on the local system without proper authorization, potentially compromising confidentiality.

Mitigation Strategies

The vulnerability involves an out-of-bounds read in the Windows Application Identity (AppID) Subsystem that allows an authorized attacker to disclose information locally.

To mitigate this vulnerability, it is recommended to apply the security updates provided by Microsoft as soon as they become available.

Compliance Impact

This vulnerability allows an authorized attacker to disclose information locally due to an out-of-bounds read in the Windows Application Identity (AppID) Subsystem.

Information disclosure vulnerabilities can potentially impact compliance with standards and regulations such as GDPR and HIPAA, which require protection of sensitive data and personal information.

However, the provided information does not specify the exact nature or sensitivity of the disclosed information, nor does it explicitly link this vulnerability to compliance failures.

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