CVE-2026-62701: Windows Telephony Service Elevation of Privilege Vulnerability
Use after free 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 10.0.26100.9168Fixed in 10.0.26000.9106Patch KB5120994 - Upgrade
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Fixed in 10.0.26200.9168Fixed in 10.0.26100.9106Patch KB5120994 - Upgrade
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Fixed in 10.0.22631.7517Patch KB5120240 - Upgrade
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Fixed in 10.0.26100.9168Fixed in 10.0.26100.9106Patch KB5120994 - Upgrade
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Fixed in 10.0.26100.33296Fixed in 10.0.26100.33222Patch KB5120228 - Upgrade
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Fixed in 10.0.19045.7663Patch KB5120249 - Upgrade
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Fixed in 10.0.19044.7663Patch KB5120249 - Upgrade
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Fixed in 10.0.20348.5499Fixed in 10.0.20348.5440Patch KB5120229 - Upgrade
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Fixed in 10.0.17763.9115Patch KB5120238 - Upgrade
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Fixed in 10.0.14393.9418Patch KB5120418 - Upgrade
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Fixed in 10.0.28000.2704Patch KB5121000 - Upgrade
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Fixed in 6.2.9200.26279Patch KB5120385 - Upgrade
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Fixed in 6.3.9600.23337Patch KB5120386
Event History
Frequently Asked Questions
What is the severity of CVE-2026-62701?
CVE-2026-62701 has a high severity rating of 7.8.
How can I fix CVE-2026-62701?
To fix CVE-2026-62701, ensure that your Windows operating system is updated with the latest security patches provided by Microsoft.
What types of systems are affected by CVE-2026-62701?
CVE-2026-62701 affects Microsoft Windows 10, Windows 11, and various versions of Windows Server including 2016, 2019, 2022, and 2025.
What is the risk associated with CVE-2026-62701?
CVE-2026-62701 poses a risk that an authorized attacker can elevate their privileges locally on the affected system.
What is the nature of CVE-2026-62701?
CVE-2026-62701 is classified as a Use After Free vulnerability in the Windows Telephony Service.