CVE-2023-34367

6.5 mediumEPSS 1.2%

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.

Severity

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
CWE: CWE-287
Published: 2023-06-14
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

microsoft:windows_7

References

http://blog.pi3.com.pl/?p=850
https://portswigger.net/daily-swig/blind-tcp-ip-hijacking-is-resurrected-for-windows-7
https://pwnies.com/windows-7-blind-tcp-ip-hijacking/
http://blog.pi3.com.pl/?p=850
https://portswigger.net/daily-swig/blind-tcp-ip-hijacking-is-resurrected-for-windows-7

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