Published Sep 24, 2026Sources checked Nov 12, 2026
7.1HIGHCVSS out of 10
What this means
Review the available evidence
CVE-2026-93816 and is rated High severity with a CVSS score of 7.1. 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: Sep 28, 2026
Release Notes
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-2026-93816?
In the Linux kernel, the following vulnerability has been resolved:
f2fs: validate inline dentry name lengths before conversion
Inline dentry conversion copies names out of the inline dentry area before checking that each recorded name length fits in the available filename slots.
A corrupted image can therefore make the conversion path read past the inline filename storage while building the regular dentry block.
Validate each inline dentry name length against the inline filename area before copying it.