CVE-2026-26155
Received Received - Intake
Information Disclosure Vulnerability in Microsoft LSASS Service

Publication date: 2026-04-14

Last updated on: 2026-04-24

Assigner: Microsoft Corporation

Description
Microsoft Local Security Authority Subsystem Service Information Disclosure Vulnerability
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Meta Information
Published
2026-04-14
Last Modified
2026-04-24
Generated
2026-06-16
AI Q&A
2026-04-14
EPSS Evaluated
2026-06-15
NVD
CVE-2026-26155
EUVD
EUVD-2026-22378
Affected Vendors & Products
Showing 23 associated CPEs
Vendor Product Version / Range
microsoft windows_10_1607 to 10.0.14393.9060 (exc)
microsoft windows_10_1607 to 10.0.14393.9060 (exc)
microsoft windows_10_1809 to 10.0.17763.8644 (exc)
microsoft windows_10_1809 to 10.0.17763.8644 (exc)
microsoft windows_10_21h2 to 10.0.19044.7184 (exc)
microsoft windows_10_21h2 to 10.0.19044.7184 (exc)
microsoft windows_10_21h2 to 10.0.19044.7184 (exc)
microsoft windows_10_22h2 to 10.0.19045.7184 (exc)
microsoft windows_10_22h2 to 10.0.19045.7184 (exc)
microsoft windows_10_22h2 to 10.0.19045.7184 (exc)
microsoft windows_11_23h2 to 10.0.22631.6936 (exc)
microsoft windows_11_23h2 to 10.0.22631.6936 (exc)
microsoft windows_11_24h2 to 10.0.26100.8246 (exc)
microsoft windows_11_24h2 to 10.0.26100.8246 (exc)
microsoft windows_11_25h2 to 10.0.26200.8246 (exc)
microsoft windows_11_25h2 to 10.0.26200.8246 (exc)
microsoft windows_11_26h1 to 10.0.28000.1836 (exc)
microsoft windows_11_26h1 to 10.0.28000.1836 (exc)
microsoft windows_server_2016 to 10.0.14393.9060 (exc)
microsoft windows_server_2019 to 10.0.17763.8644 (exc)
microsoft windows_server_2022 to 10.0.20348.5020 (exc)
microsoft windows_server_2022_23h2 to 10.0.25398.2274 (exc)
microsoft windows_server_2025 to 10.0.26100.32690 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-126 The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.
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Executive Summary

CVE-2026-26155 is a vulnerability in the Microsoft Local Security Authority Subsystem Service that allows for information disclosure.

Impact Analysis

This vulnerability can lead to the disclosure of sensitive information, which may compromise confidentiality but does not affect integrity or availability.

Compliance Impact

This vulnerability involves information disclosure with a high impact on confidentiality (C:H) but does not affect integrity or availability.

Information disclosure vulnerabilities can potentially lead to non-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 direct effects or compliance implications related to these regulations.

Mitigation Strategies

The vulnerability CVE-2026-26155 is an information disclosure issue affecting the Microsoft Local Security Authority Subsystem Service.

To mitigate this vulnerability, it is recommended to apply the security updates provided by Microsoft as detailed in their official update guide.

Ensure that your systems are updated with the latest patches from Microsoft to address this important severity vulnerability.

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