Cyber Risks November 13, 2026 · Zero Day Initiative

ZDI-26-998: Linux Kernel KSMBD SMB Direct Integer Underflow Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Linux Kernel KSMBD. Authentication may or may not be required to exploit this vulnerability, depending upon configuration. Only systems with SMB Direct enabled are vulnerable. The ZDI has assigned a CVSS rating of 9.0.

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Topics

Vulnerabilities & Patching

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