CVE-2026-70337: Microsoft PowerShell

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.

Affected products

• Microsoft PowerShell: from 7.4, before 7.4.19.0 (fixed in 7.4.19.0); from 7.5, before 7.5.10.0 (fixed in 7.5.10.0); from 7.6, before 7.6.5 (fixed in 7.6.5)

Published 2026-08-11. Last modified 2026-08-14.