Summary
Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is the local memory address.
Security updates
10.0.17763.8880 — https://support.microsoft.com/help/5094123
10.0.20348.5256 — https://support.microsoft.com/help/5094128
10.0.19044.7417 — https://support.microsoft.com/help/5094127
10.0.26100.32995 — https://support.microsoft.com/help/5094125
10.0.26200.8655 — https://support.microsoft.com/help/5094126
10.0.22631.7219 — https://support.microsoft.com/help/5093998
10.0.28000.2269 — https://support.microsoft.com/help/5095051
10.0.14393.9234 — https://support.microsoft.com/help/5094122
6.2.9200.26132 — https://support.microsoft.com/help/5094042
6.3.9600.23228 — https://support.microsoft.com/help/5094041
Vulnerabilities 1
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Medium 5.5
Windows Telephony Server Information Disclosure Vulnerability
Out-of-bounds read in Windows Telephony Service allows an authorized attacker to disclose information locally.
Revision history
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#1
Information published.
References
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CVE-2026-42968 Windows Telephony Server Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42968
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss