CVE-2026-42976: Remote Access Management service/API (RPC server) Elevation of Privilege Vulnerability
Missing authentication for critical function in Windows RPC API allows an authorized attacker to elevate privileges locally.
Other sources
Remote Access Management service/API (RPC server) Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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Fixed in 10.0.19045.7417Patch KB5094127 - Upgrade
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Fixed in 10.0.26200.9168Fixed in 10.0.26100.9106Patch KB5120994 - Upgrade
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Fixed in 10.0.26100.32995Fixed in 10.0.26100.33222Patch KB5120228 - Upgrade
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Fixed in 10.0.19044.7417Patch KB5094127 - Upgrade
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Fixed in 10.0.17763.8880Patch KB5094123 - Upgrade
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Fixed in 10.0.14393.9234Patch KB5094122 - Upgrade
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Fixed in 10.0.20348.5499Fixed in 10.0.20348.5440Patch KB5120229 - Upgrade
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Fixed in 10.0.28000.2269Patch KB5095051 - 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 10.0.26000.9106Patch KB5120994 - Upgrade
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Fixed in 6.3.9600.23228Patch KB5094041 - Upgrade
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Fixed in 6.2.9200.26132Patch KB5094042
Event History
Frequently Asked Questions
What is the severity of CVE-2026-42976?
CVE-2026-42976 has a high severity rating of 7.8.
How do I fix CVE-2026-42976?
To mitigate CVE-2026-42976, ensure that you implement the appropriate security patches provided by Microsoft for affected systems.
What products are affected by CVE-2026-42976?
CVE-2026-42976 affects Microsoft Windows 10, Windows 11, and various versions of Windows Server including 2012, 2016, 2019, 2022, and 2025.
What type of vulnerability is CVE-2026-42976?
CVE-2026-42976 is classified as an Elevation of Privilege vulnerability due to missing authentication in the Windows RPC API.
Can CVE-2026-42976 be exploited remotely?
CVE-2026-42976 allows an attacker to exploit the vulnerability locally, but not remotely.