CVE-2023-34367: Microsoft Windows 7

Medium severity, CVSS 6.5. EPSS: 1.2% chance of exploitation in the next 30 days.

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: affected versions not specified

Published 2023-06-14. Last modified 2026-06-17.