CVE-2026-47291: CWE-190: Integer Overflow or Wraparound in Microsoft Windows 10 Version 1607
CVE-2026-47291 is a critical integer overflow or wraparound vulnerability in the Windows HTTP. sys component of Microsoft Windows 10 Version 1607 (build 10. 0. 14393. 0). This flaw allows an unauthorized attacker to execute code remotely over a network without user interaction or privileges. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability involves an integer overflow or wraparound in the Windows HTTP.sys driver in Windows 10 Version 1607 (build 10.0.14393.0). Exploitation could enable remote code execution by an unauthenticated attacker over the network. The CVSS v3.1 base score is 9.8, indicating critical severity with high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation allows remote, unauthenticated attackers to execute arbitrary code on affected systems, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability of the impacted Windows 10 systems.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47291 to remediate this vulnerability.
CVE-2026-47291: CWE-190: Integer Overflow or Wraparound in Microsoft Windows 10 Version 1607
Description
CVE-2026-47291 is a critical integer overflow or wraparound vulnerability in the Windows HTTP. sys component of Microsoft Windows 10 Version 1607 (build 10. 0. 14393. 0). This flaw allows an unauthorized attacker to execute code remotely over a network without user interaction or privileges. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 9.8critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an integer overflow or wraparound in the Windows HTTP.sys driver in Windows 10 Version 1607 (build 10.0.14393.0). Exploitation could enable remote code execution by an unauthenticated attacker over the network. The CVSS v3.1 base score is 9.8, indicating critical severity with high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation allows remote, unauthenticated attackers to execute arbitrary code on affected systems, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability of the impacted Windows 10 systems.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47291 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-18T23:53:33.896Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47291","vendor":"Microsoft"}]
Threat ID: 6a284cec8dd33fbd85664fb7
Added to database: 6/9/2026, 5:27:08 PM
Last enriched: 6/9/2026, 6:10:55 PM
Last updated: 6/9/2026, 7:39:34 PM
Views: 5
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