CVE intelligence

CVE-2026-93801

Vulnerability intelligence

Published Sep 24, 2026Sources checked Nov 12, 2026

7.0HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-93801 and is rated High severity with a CVSS score of 7.0. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Oct 24, 2026

Release Notes

Vendor-listed releases

6.6.159.1-1

CISA KEVNot listedBased on the latest collected catalog

EPSS0.1%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-93801?

In the Linux kernel, the following vulnerability has been resolved:

smb/client: zero-initialize stack-allocated cifs_open_info_data

Stack-allocated cifs_open_info_data may contain random data. This can make some fields have wrong value if they are not set later.

Source: NVD