CVE-2026-42974: CWE-190: Integer Overflow or Wraparound in Microsoft Windows 11 version 23H2
Integer overflow or wraparound in Windows Performance Monitor allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability involves an integer overflow or wraparound in the Windows Performance Monitor on Windows 11 version 23H2 (build 10.0.22631.0). An attacker without privileges or user interaction can exploit this flaw remotely to execute arbitrary code. Microsoft has published an official fix to address this issue.
Potential Impact
Successful exploitation could lead to remote code execution with high impact on confidentiality, integrity, and availability of the affected system. The attacker requires network access but no privileges or user interaction. This could allow full system compromise remotely.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update referenced in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42974 to remediate this vulnerability.
CVE-2026-42974: CWE-190: Integer Overflow or Wraparound in Microsoft Windows 11 version 23H2
Description
Integer overflow or wraparound in Windows Performance Monitor allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 8.1high
Affected software
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an integer overflow or wraparound in the Windows Performance Monitor on Windows 11 version 23H2 (build 10.0.22631.0). An attacker without privileges or user interaction can exploit this flaw remotely to execute arbitrary code. Microsoft has published an official fix to address this issue.
Potential Impact
Successful exploitation could lead to remote code execution with high impact on confidentiality, integrity, and availability of the affected system. The attacker requires network access but no privileges or user interaction. This could allow full system compromise remotely.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update referenced in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42974 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-30T23:43:50.745Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42974","vendor":"Microsoft"}]
Threat ID: 6a284cc88dd33fbd856648d6
Added to database: 06/09/2026, 17:26:32 UTC
Last enriched: 08/14/2026, 13:21:42 UTC
Last updated: 09/13/2026, 22:01:34 UTC
Views: 92
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