MicrosoftCVE-2026-70338
Microsoft PowerShell: code injection
High7.8CVE-2026-70338 · Published Aug 11, 2026 · updated Aug 14, 2026
Improper control of generation of code ('code injection') in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature locally.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| PowerShell 7.4 Product | >= 7.4.0, < 7.4.19.0 | 7.4.19.0 |
| PowerShell 7.5 Product | >= 7.5.0, < 7.5.10.0 | 7.5.10.0 |
| PowerShell 7.6 Product | >= 7.6.0, < 7.6.5 | 7.6.5 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-94
More Microsoft advisories
All Microsoft| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 11 | Copilot Chat Security Feature Bypass Vulnerability | High7.1 | 1.132.1 |
| Aug 11 | Copilot Custom Agent Hook Remote Code Execution Vulnerability | High7.8 | 1.132.1 |
| Aug 11 | Information disclosure vulnerability | Medium | 1.132.1 |
| Aug 11 | Fileless RCE in VS Code Web Remote Terminal via URL-Controlled NODE_OPTIONS | High8.8 | 1.132.1 |
| Aug 11 | Visual Studio Code web deployments - environmentService.ts - RCE via NODE_OPTIONS --import from URL payload | High8.8 | 1.132.1 |
| Aug 11 | TerminalInstance._createProcess - Workspace Trust bypass via terminal waitOnExit | High7.8 | 1.132.1 |