Microsoft PowerShell
CVE-2026-70338 — Microsoft PowerShell Security Feature Bypass Vulnerability
Executive Summary
Improper control of generation of code ('code injection') in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature locally.
Overview
7.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Local
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: 6.8
EPSS Score
0.0044
probability of exploitation in the next 30 days
0.36465 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 | Security Feature Bypass | Maybe |
| PowerShell 7.5 | (Security Update) |
Important | Security Feature Bypass | Maybe |
| PowerShell 7.6 | (Security Update) |
Important | Security Feature Bypass | 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
Ayato Shitomi
陳宥升 (CheN..) https://github.com/samer666569
MinhNV5 with MBBank
YMsora
References
On This Page