Important CVSS 7.1 2026-09 archive

Executive Summary

Use after free in Windows Remote Desktop Services allows an authorized attacker to execute code over a network.

Overview

7.1
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Sep 8 2026
Last Updated Sep 8 2026
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known

CVSS Vector

ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
Low
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.2

EPSS Score

No EPSS score available for this CVE.

View on FIRST.org

Affected Products

10 affected products
Product KB Article Severity Impact Restart Required
Windows 11 Version 23H2 for ARM64-based Systems 5122880 (Security Update) Important Remote Code Execution Yes
Windows 11 Version 23H2 for x64-based Systems 5122880 (Security Update) Important Remote Code Execution Yes
Windows 11 Version 24H2 for ARM64-based Systems 5124008 (Security Update) Important Remote Code Execution Yes
Windows 11 Version 24H2 for x64-based Systems 5124008 (Security Update) Important Remote Code Execution Yes
Windows 11 Version 25H2 for ARM64-based Systems 5124008 (Security Update) Important Remote Code Execution Yes
Windows 11 Version 25H2 for x64-based Systems 5124008 (Security Update) Important Remote Code Execution Yes
Windows 11 Version 26H1 for ARM64-based Systems 5124012 (Security Update) Important Remote Code Execution Yes
Windows 11 version 26H1 for x64-based Systems 5124012 (Security Update) Important Remote Code Execution Yes
Windows Server 2025 5122871 (Security Update) Important Remote Code Execution Yes
Windows Server 2025 (Server Core installation) 5122871 (Security Update) Important Remote Code Execution Yes

Patches

4 patches
Article Type Restart
5122880 Security Update Yes
5124008 Security Update Yes
5124012 Security Update Yes
5122871 Security Update Yes

Exploits & PoC

Detection Rules

Acknowledgments

Microsoft has not published researcher acknowledgments for this CVE, or they are not yet reflected in our data source. Check the MSRC advisory directly for the most current credit information.