High severity7.8NVD Advisory· Published Aug 11, 2026· Updated Aug 14, 2026
CVE-2026-70338
CVE-2026-70338
Description
Improper control of generation of code ('code injection') in Microsoft PowerShell allows an unauthorized attacker to bypass a security feature locally.
Affected products
3cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:*range: >=7.4,<7.4.19.0
- (no CPE)
Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70338nvdVendor Advisory
News mentions
2- Patch Tuesday - August 2026Rapid7 Blog · Aug 11, 2026
- Microsoft Patch Tuesday Update August 2026 – 394 Vulnerabilities Fixed, Including 3 Zero-DaysCyber Security News · Aug 11, 2026