CVE-2026-62732: Windows Telephony Service Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
Other sources
Windows Telephony Service Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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Fixed in 10.0.28000.2704Patch KB5121000 - Upgrade
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Fixed in 10.0.14393.9418Patch KB5120418 - Upgrade
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Fixed in 10.0.20348.5499Fixed in 10.0.20348.5440Patch KB5120229 - Upgrade
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Fixed in 10.0.19044.7663Patch KB5120249 - Upgrade
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Fixed in 10.0.17763.9115Patch KB5120238 - Upgrade
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Fixed in 10.0.26100.33296Fixed in 10.0.26100.33222Patch KB5120228 - Upgrade
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Fixed in 10.0.22631.7517Patch KB5120240 - Upgrade
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Fixed in 10.0.19045.7663Patch KB5120249 - Upgrade
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Fixed in 6.3.9600.23338Patch KB5120385 - Upgrade
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Fixed in 6.2.9200.26280Patch KB5120386 - Upgrade
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Fixed in 10.0.26100.9168Fixed in 10.0.26100.9106Patch KB5120994 - Upgrade
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Fixed in 10.0.26100.9168Fixed in 10.0.26200.9106Patch KB5120994 - Upgrade
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Fixed in 10.0.26200.9168Fixed in 10.0.26200.9106Patch KB5120994
Event History
Frequently Asked Questions
What is the severity of CVE-2026-62732?
CVE-2026-62732 has a high severity rating of 7.8.
How do I fix CVE-2026-62732?
To mitigate CVE-2026-62732, ensure your system is updated with the latest security patches provided by Microsoft.
What is CVE-2026-62732?
CVE-2026-62732 is a heap-based buffer overflow vulnerability in the Windows Telephony Service that allows local attackers to elevate their privileges.
Which Windows versions are affected by CVE-2026-62732?
CVE-2026-62732 affects Microsoft Windows 10, Windows 11, and various versions of Windows Server including 2016, 2019, 2022, and 2025.
How can an attacker exploit CVE-2026-62732?
An attacker can exploit CVE-2026-62732 by executing a malicious program locally to gain elevated privileges.