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CVE intelligence

CVE-2026-70338

Vulnerability intelligence

Published Aug 11, 2026Sources checked Oct 28, 2026
7.8HIGHCVSS out of 10
What this means

Review the available evidence

CVE-2026-70338 and is rated High severity with a CVSS score of 7.8. 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 26, 2026

See the Microsoft Security Update Guide for the update that applies to your product.

Vendor-listed releases

  • 7.4.19.0
  • 7.5.10.0
  • 7.6.5
CISA KEVNot listedBased on the latest collected catalog
EPSS0.4%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview

What is CVE-2026-70338?

Improper control of generation of code ('code injection') in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature locally.

Source: NVD