PT-2026-47896 · Microsoft · Windows Telephony Service

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-42968

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Windows Telephony Service (affected versions not specified)

Description An out-of-bounds read in the Windows Telephony Service allows an authorized attacker to disclose sensitive information locally and affect the system. An out-of-bounds read occurs when a program reads data past the end or beginning of the intended buffer.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-42968

Affected Products

Windows Telephony Service

References · 4

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42968 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-42968 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-42968 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-42968 · Vendor Advisory