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8.1
Windows TCP/IP Allows Unauthorized Code Execution via Network
CVE-2026-33827
Summary
A security flaw in Windows TCP/IP could allow an attacker to execute code on a computer over a network. This could happen if an attacker sends a malicious message to a vulnerable computer at the right time. To protect your computer, apply the latest Windows updates.
Original title
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
Original description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
nvd CVSS3.1
8.1
Vulnerability type
CWE-362
Race Condition
Published: 14 Apr 2026 · Updated: 14 Apr 2026 · First seen: 14 Apr 2026