Mutipath TCP: Use and Detection, (Mon, Nov 2nd)
Summary
A recent vulnerability discovered in Linux's implementation of Multipath TCP (RFC 8684) has brought attention to this often-overlooked TCP option. The vulnerability, identified as CVE-2026-98432, highlights potential security concerns with this protocol extension.
IFF Assessment
FOE
The discovery of a new vulnerability impacting a network protocol is bad news for defenders as it could be exploited to compromise systems.
Severity
9.8
Critical
(CVSS v3.1)
Defender Context
Defenders need to be aware of this vulnerability in Linux systems that utilize Multipath TCP. Prompt patching and network monitoring for anomalous TCP behavior related to this option are crucial to prevent exploitation. Understanding the capabilities and potential exploits of Multipath TCP is now more important.