CVE-2026-96303

Microsoft PowerShell Security Feature Bypass Vulnerability

CVE-2026-96303 is fixed in PowerShell on 1 platform by PowerShell 7.6.7.0 (version 7.6.7.0), released October 13, 2026. 1 other affected product has no fix yet. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

6.5

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0069

53rd percentile

<p>Improperly implemented security check for standard in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature over a network.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
PowerShell	7.6.7.0	PowerShell 7.6.7.0	Oct 13, 2026
No fix yet
PowerShell Preview (Windows apps)	No fix yet	no-fix	n/a

Details

Published
October 13, 2026
Weakness
Improperly Implemented Security Check for Standard
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96303

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