CVE-2023-30305: CVE-2023-30305 | Rafael Pfister

Analysis on rafaelpfister.ch

Article · October 28, 2026 NatJack: NAT Table Attacks Explained, Who Is Affected, and What Measures Are Needed NatJack is a new class of attacks against NAT devices: An attacker behind the same router, firewall, or Docker bridge can hijack other TCP connections, intercept DNS responses, or disable NAT. How the attack works, which products are affected, when action is needed, and which measures are effective.

Vendor description

An issue discovered in Linksys E5600 routers allows attackers to hijack TCP sessions which could lead to a denial of service.

Reference data

CVSS 3.1: 7.5 (HIGH)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: May 28, 2024

Official sources

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