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CVSS v3.1
7.3
EPSS
0.29%
Published
May 28, 2024
Modified
Apr 14, 2026
Public PoC / Exploit
All weaponized →No public PoC or exploit code indexed for this CVE.
Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
Description
An issue discovered in OpenWrt 18.06, 19.07, 21.02, 22.03, and beyond allows off-path attackers to hijack TCP sessions, which could lead to a denial of service, impersonating the client to the server (e.g., for access to files over FTP), and impersonating the server to the client (e.g., to deliver false information from a finance website). This occurs because nf_conntrack_tcp_no_window_check is true by default.
CVSS Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:HWeaknesses (CWE)
References (8)