Advisory Published


First published: Wed Jun 14 2023(Updated: )

Windows 7 is vulnerable to a full blind TCP/IP hijacking attack. The vulnerability exists in Windows 7 (any Windows until Windows 8) and in any implementation of TCP/IP, which is vulnerable to the Idle scan attack (including many IoT devices). NOTE: The vendor considers this a low severity issue.


Affected SoftwareAffected VersionHow to fix
Microsoft Windows 7

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Frequently Asked Questions

  • What is CVE-2023-34367?

    CVE-2023-34367 is a vulnerability in Windows 7 that allows for a full blind TCP/IP hijacking attack.

  • Which versions of Windows are affected by CVE-2023-34367?

    Windows 7 (any version until Windows 8) is affected by CVE-2023-34367.

  • What is the severity of CVE-2023-34367?

    The vendor considers CVE-2023-34367 a low severity issue, but it is assigned a severity rating of 6.5.

  • How can CVE-2023-34367 be exploited?

    CVE-2023-34367 can be exploited through a full blind TCP/IP hijacking attack.

  • Is there a fix for CVE-2023-34367?

    There is no known fix for CVE-2023-34367, as Windows 7 is no longer supported by Microsoft.


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