ReviewHigh

CVE-2026-70337

Microsoft PowerShell 7.4, PowerShell 7.5, PowerShell 7.6

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

PRIORITY ASSESSMENT

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability-

Technical severityCVSS 8.8

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

Product: Microsoft PowerShell 7.4, PowerShell 7.5, PowerShell 7.6
Affected versions: >= 7.4.0 < 7.4.19.0, >= 7.5.0 < 7.5.10.0, >= 7.6.0 < 7.6.5, >= 7.4 < 7.4.19.0, >= 7.5 < 7.5.10.0, >= 7.6 < 7.6.5
Fixed versions: Verify the fixed release separately for each affected product line

Confirm exposure before applying a vendor-supported change.

1
Identify
Confirm that Microsoft PowerShell 7.4, PowerShell 7.5, PowerShell 7.6 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.