CVE-2026-40406
HighSummary
A use after free vulnerability in Windows TCP/IP allows an unauthorized attacker to disclose information over a network.
Risk Assessment
An attacker could exploit this vulnerability to intercept sensitive data transmitted over the network, potentially compromising the privacy and security of the organization.
Recommendation
It is recommended to update Windows to the latest version to patch this vulnerability and to monitor network traffic for potential attacks.
Other vulnerabilities in Windows TCP/IP
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A use after free vulnerability in the Windows TCP/IP stack allows an authorized attacker to elevate privileges locally. The issue stems from accessing freed memory within the TCP/IP protocol handling code.
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Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
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Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
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Incorrect conversion between numeric types in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
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Double free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
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Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- CVE-2026-83678High
Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- CVE-2026-70164High
Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- CVE-2026-69913High
Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
- CVE-2026-40415High
A use after free vulnerability in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
Original NVD description (English source)
Use after free in Windows TCP/IP allows an unauthorized attacker to disclose information over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS