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CVE intelligence

CVE-2026-93222

Vulnerability intelligence

Published Sep 24, 2026Sources checked Nov 12, 2026
N/ACVSS not listedScore unavailable
What this means

Review the available evidence

CVE-2026-93222. 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 4, 2026

Release Notes

Vendor-listed releases

  • 6.6.157.1-1
CISA KEVNot listedBased on the latest collected catalog
EPSS0.2%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview

What is CVE-2026-93222?

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

signal: avoid shared siginfo namespace rewrites

send_signal_locked() rewrites sender ids for the target namespace. Group sends reuse the same siginfo, so one recipient can affect the next.

Copy the siginfo before changing it.

Source: NVD