What is CVE-2026-50523?

CVE-2026-50523 is a high-severity vulnerability in Microsoft Powershell 7.4, classified under Command Injection. CVSS score: 7.8/10. Published 2026-08-14.

How severe is CVE-2026-50523?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Microsoft Powershell 7.4

CVE-2026-50523

Improper neutralization of special elements used in a command ('command injection') in Microsoft PowerShell allows an authorized attacker to execute code locally.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Microsoft Powershell 7.4 — versions 7.4.0
Microsoft Powershell 7.5 — versions 7.5.0
Microsoft Powershell 7.6 — versions 7.6.0

Weakness classification (CWE)

CWE-77 — Command Injection

References

secure@microsoft.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-50523?: CVE-2026-50523 is a high-severity vulnerability in Microsoft Powershell 7.4, classified under Command Injection. CVSS score: 7.8/10. Published 2026-08-14.
How severe is CVE-2026-50523?: High severity. CVSS v3 base score is 7.8 out of 10.