Microsoft PowerShell 7.4 vulnerabilities

2 CVEs affecting Microsoft PowerShell 7.4, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-96303, published 2026-10-13.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2026-96303, published 2026-10-13. Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days. Improperly implemented security check for standard in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature over a network.
• CVE-2026-96251, published 2026-10-13. High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days. Reliance on untrusted inputs in a security decision in Microsoft PowerShell allows an unauthorized attacker to execute code over a network.