CVE-2026-70337

Published: Aug 11, 2026Modified: Aug 14, 2026

8.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 2.8 / Impact: 5.9

Source: secure@microsoft.com (Secondary)

Description

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

Affected (3)

Products: Microsoft: Powershell

1 product

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Microsoft Powershell	7.4 ≤ version < 7.4.19.0
Microsoft Powershell	7.5 ≤ version < 7.5.10.0
Microsoft Powershell	7.6 ≤ version < 7.6.5

Related CWEs

Relative Path Traversal

The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70337

Source: secure@microsoft.com

Vendor Advisory

Timeline

No history available yet.