CVE-2026-33827: Windows TCP/IP Remote Code Execution Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
Other sources
Windows TCP/IP Remote Code Execution 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 10.0.19044.7184Patch KB5082200 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.19045.7184Patch KB5082200 - Upgrade
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Fixed in 10.0.20348.5020Patch KB5082142 - Upgrade
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Fixed in 10.0.17763.8644Patch KB5082123 - Upgrade
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Fixed in 6.3.9600.23132Patch KB5082126 - Upgrade
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Fixed in 10.0.28000.1836Patch KB5083768 - Upgrade
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Fixed in 10.0.14393.9060Patch KB5082198 - Upgrade
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Fixed in 6.2.9200.26026Patch KB5082127 - Upgrade
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Fixed in 10.0.26100.32690Patch KB5082063 - 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 10.0.22631.6936Patch KB5082052 - Upgrade
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Fixed in 10.0.26100.8246Patch KB5083769
Event History
Frequently Asked Questions
What is the severity of CVE-2026-33827?
CVE-2026-33827 is considered a critical vulnerability as it allows remote code execution via improper synchronization in Windows TCP/IP.
How do I fix CVE-2026-33827?
To fix CVE-2026-33827, users should apply the appropriate security patches released by Microsoft for their affected Windows versions.
Who is affected by CVE-2026-33827?
CVE-2026-33827 affects various versions of Windows 10, Windows 11, and Windows Server, specifically targeting specific builds and editions.
What type of attack can exploit CVE-2026-33827?
An attacker can exploit CVE-2026-33827 through a network-based attack to execute arbitrary code remotely on the affected system.
Is there a workaround for CVE-2026-33827?
Until patches are applied, users are advised to limit network exposure and disable unneeded services to mitigate the risks associated with CVE-2026-33827.