CVE-2026-27909: Windows Search Service Elevation of Privilege Vulnerability
Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
Other sources
Windows Search Service Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9060Patch KB5082198 - Upgrade
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Fixed in 10.0.26100.32690Patch KB5082063 - Upgrade
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Fixed in 10.0.17763.8644Patch KB5082123 - Upgrade
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Fixed in 10.0.26100.8246Patch KB5083769 - Upgrade
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Fixed in 10.0.25398.2274Patch KB5082060 - Upgrade
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Fixed in 10.0.26200.8246Patch KB5083769 - Upgrade
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Fixed in 6.2.9200.26026Patch KB5082127 - Upgrade
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Fixed in 10.0.22631.6936Patch KB5082052 - Upgrade
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Fixed in 10.0.28000.1836Patch KB5083768 - Upgrade
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Fixed in 10.0.19045.7184Patch KB5082200 - Upgrade
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Fixed in 10.0.19044.7184Patch KB5082200 - Upgrade
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Fixed in 6.3.9600.23132Patch KB5082126 - Upgrade
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Fixed in 10.0.20348.5020Patch KB5082142
Event History
Frequently Asked Questions
What is the severity of CVE-2026-27909?
CVE-2026-27909 has a high severity rating as it allows an authorized attacker to elevate privileges locally.
How do I fix CVE-2026-27909?
To fix CVE-2026-27909, apply the relevant security patches provided by Microsoft immediately.
Which versions of Windows are affected by CVE-2026-27909?
CVE-2026-27909 affects various versions of Windows, including Windows Server 2012, 2019, Windows 10, and Windows 11.
What type of vulnerability is CVE-2026-27909?
CVE-2026-27909 is classified as a use after free vulnerability in the Windows Search Service.
Can CVE-2026-27909 be exploited remotely?
CVE-2026-27909 cannot be exploited remotely as it requires local access for privilege escalation.