High MSRC-CVE-2026-70052 1 CVE

Microsoft PowerShell Remote Code Execution Vulnerability

Published Oct 13, 2026 · Updated Nov 10, 2026 · Revision 3

Vendor: Microsoft

Summary

Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

Security updates
10.0.26300.9711 — https://support.microsoft.com/help/5127648
10.0.20348.5761 — https://support.microsoft.com/help/5126655
10.0.26100.33650 — https://support.microsoft.com/help/5126646
10.0.22631.7652 — https://support.microsoft.com/help/5126653
10.0.28000.3231 — https://support.microsoft.com/help/5127646

Vulnerabilities 1

High 7.8

CVE-2026-70052

Microsoft PowerShell Remote Code Execution Vulnerability

Integer overflow or wraparound in Windows PowerShell allows an authorized attacker to execute code locally.

Microsoft Windows Server 2022 Windows Server 2025 Windows Server 2025 (Server Core installation) Windows

Oct 13, 2026

Revision history

2026-11-10 #3
Updated an acknowledgement. This is an informational change only.
2026-11-02 #2
Updated an acknowledgement. This is an informational change only.
2026-10-13 #1
Information published.

References

CVE-2026-70052 Microsoft PowerShell Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70052
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss