CVE-2026-42968
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Out-of-Bounds Read in Windows Telephony Service

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: Microsoft Corporation

Description
Out-of-bounds read in Windows Telephony Service allows an authorized attacker to disclose information locally.
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Meta Information
Published
2026-06-09
Last Modified
2026-06-09
Generated
2026-06-10
AI Q&A
2026-06-10
EPSS Evaluated
N/A
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft windows_telephony_service *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.
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Mitigation Strategies

The vulnerability is an out-of-bounds read in the Windows Telephony Service that allows an authorized attacker to disclose information locally.

Since the vulnerability requires local authorized access, immediate mitigation steps include limiting user privileges to only those necessary and ensuring that only trusted users have access to the affected Windows Telephony Service.

Additionally, monitoring for and applying any security updates or patches provided by Microsoft for this vulnerability is recommended.

Executive Summary

This vulnerability is an out-of-bounds read in the Windows Telephony Service. It allows an authorized attacker to access and disclose information locally on the affected system.

Impact Analysis

The impact of this vulnerability is information disclosure. An authorized attacker could exploit this flaw to gain access to sensitive information on the local machine without causing disruption or modification to the system.

Compliance Impact

This vulnerability allows an authorized attacker to disclose information locally due to an out-of-bounds read in the Windows Telephony Service.

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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