CVE-2026-62783: Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
Other sources
Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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Fixed in 10.0.17763.9115Patch KB5120238 - Upgrade
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Fixed in 10.0.28000.2704Patch KB5121000 - Upgrade
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Fixed in 10.0.26100.33296Fixed in 10.0.26100.33222Patch KB5120228 - Upgrade
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Fixed in 10.0.26100.9168Fixed 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 10.0.19045.7663Patch KB5120249 - Upgrade
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Fixed in 10.0.26100.9168Fixed in 10.0.26100.9106Patch KB5120994 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19044.7663Patch KB5120249 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5499Fixed in 10.0.20348.5440Patch KB5120229
Event History
Frequently Asked Questions
What is the severity of CVE-2026-62783?
CVE-2026-62783 has a high severity rating of 7.8.
How do I fix CVE-2026-62783?
To mitigate CVE-2026-62783, apply the latest security updates provided by Microsoft for Windows 10, 11, and Server editions.
What causes CVE-2026-62783?
CVE-2026-62783 is caused by a heap-based buffer overflow in the Windows Remote Access Connection Manager.
Who is affected by CVE-2026-62783?
CVE-2026-62783 affects users of Microsoft Windows 10, Windows 11, and Windows Server versions from 2019 to 2025.
What type of vulnerability is CVE-2026-62783?
CVE-2026-62783 is classified as an elevation of privilege vulnerability.