Microsoft PowerShell Core
CVE-2026-70337 — Microsoft PowerShell Remote Code Execution Vulnerability
Executive Summary
Relative path traversal in Microsoft PowerShell Core allows an unauthorized attacker to execute code over a network.
Overview
8.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 7.7
EPSS Score
0.00775
probability of exploitation in the next 30 days
0.52631 percentile - updated 2026-08-14
View on FIRST.org
Affected Products
3 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| PowerShell 7.4 | (Security Update) |
Important | Remote Code Execution | Maybe |
| PowerShell 7.5 | (Security Update) |
Important | Remote Code Execution | Maybe |
| PowerShell 7.6 | (Security Update) |
Important | Remote Code Execution | Maybe |
Patches
1 patch
| Article | Type | Restart |
|---|---|---|
|
Security Update | Maybe |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
Hasan Flayyih Abdullah
0hmz
f7d8c52bec79e42795cf15888b85cbad
xboy
Anindya Roy
Mohit_Negi
References
On This Page