CVE-2026-71331: CWE-190: Integer Overflow or Wraparound in Microsoft Windows 10 Version 1809
Integer overflow or wraparound in Microsoft Azure Attestation service and Device Health Attestation Service allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability involves an integer overflow or wraparound condition in Microsoft Azure Attestation service and Device Health Attestation Service on Windows 10 Version 1809 (build 10.0.17763.0). An attacker can exploit this flaw remotely without privileges or user interaction to execute arbitrary code. The vulnerability is tracked as CVE-2026-71331 with a CVSS v3.1 score of 8.1 (high severity). Microsoft has issued an official patch and manages remediation for this cloud-hosted service. No active exploitation has been reported.
Potential Impact
Successful exploitation allows remote, unauthorized code execution with high impact on confidentiality, integrity, and availability. This could lead to full system compromise of the affected service environment. However, no known exploits are currently active in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Since this vulnerability affects a cloud-hosted service, Microsoft manages the remediation server-side. Users should apply the official patch as directed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-71331 to ensure protection.
CVE-2026-71331: CWE-190: Integer Overflow or Wraparound in Microsoft Windows 10 Version 1809
Description
Integer overflow or wraparound in Microsoft Azure Attestation service and Device Health Attestation Service allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 8.1high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an integer overflow or wraparound condition in Microsoft Azure Attestation service and Device Health Attestation Service on Windows 10 Version 1809 (build 10.0.17763.0). An attacker can exploit this flaw remotely without privileges or user interaction to execute arbitrary code. The vulnerability is tracked as CVE-2026-71331 with a CVSS v3.1 score of 8.1 (high severity). Microsoft has issued an official patch and manages remediation for this cloud-hosted service. No active exploitation has been reported.
Potential Impact
Successful exploitation allows remote, unauthorized code execution with high impact on confidentiality, integrity, and availability. This could lead to full system compromise of the affected service environment. However, no known exploits are currently active in the wild.
Mitigation Recommendations
An official fix is available from Microsoft. Since this vulnerability affects a cloud-hosted service, Microsoft manages the remediation server-side. Users should apply the official patch as directed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-71331 to ensure protection.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-05T18:41:50.334Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-71331","vendor":"Microsoft"}]
Threat ID: 6a7b5843bf8831d539156a87
Added to database: 08/11/2026, 17:13:39 UTC
Last enriched: 08/11/2026, 17:26:21 UTC
Last updated: 08/11/2026, 17:57:33 UTC
Views: 4
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