CVE-2023-34367

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-06-14 · updated 2026-06-17
Weakness: CWE-287

Description

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 products

Microsoft Windows 7: all versions

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
https://pwnies.com/windows-7-blind-tcp-ip-hijacking/

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