What is CVE-2026-96303?

CVE-2026-96303 is a medium-severity vulnerability in Microsoft Powershell 7.4, classified under CWE-358. CVSS score: 6.5/10. Published 2026-10-13.

How severe is CVE-2026-96303?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Microsoft Powershell 7.4

CVE-2026-96303

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

Published 2026-10-13 · last modified 2026-10-13.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Microsoft Powershell 7.4
Microsoft Powershell 7.5
Microsoft Powershell 7.6

Weakness classification (CWE)

CWE-358

References

Microsoft PowerShell Security Feature Bypass Vulnerability (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-96303?: CVE-2026-96303 is a medium-severity vulnerability in Microsoft Powershell 7.4, classified under CWE-358. CVSS score: 6.5/10. Published 2026-10-13.
How severe is CVE-2026-96303?: Medium severity. CVSS v3 base score is 6.5 out of 10.