Vulnerability Intelligence Report
Microsoft PowerShell Security Feature Bypass Vulnerability
CVE-2026-70338
Improper control of generation of code ('code injection') in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature locally.
No Active Exploit Signals
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:0.36%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-94 ↗CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | PowerShell 7.4 | 7.4.0 < 7.4.19.0 (affected) |
| Microsoft | PowerShell 7.5 | 7.5.0 < 7.5.10.0 (affected) |
| Microsoft | PowerShell 7.6 | 7.6.0 < 7.6.5 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.359%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2026-08-04T00:04:56 |
| Published | 2026-08-11T17:07:12 |
| Patch Date | 2026-08-11 |
| Last Updated | 2026-09-24T13:47:24 |
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