CVE-2026-69586: CWE-190: Integer Overflow or Wraparound in Microsoft Windows 10 Version 1607
Description
CVE-2026-69586 is a critical integer overflow or wraparound vulnerability in Microsoft Windows 10 Version 1607 PDF processing. It allows an unauthorized attacker to execute code remotely over a network without user interaction. The vulnerability affects multiple Windows 10 builds prior to specific patched versions. An official fix is available from Microsoft.
CVSS v3.1
Score 9.8critical
Affected software
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
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 2016
Microsoft
Windows Server 2016 (Server Core installation)
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
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 PDF handling component of Microsoft Windows 10 Version 1607. Exploitation can lead to remote code execution by an attacker over a network without requiring privileges or user interaction. The CVSS 3.1 base score is 9.8, indicating critical severity with high impact on confidentiality, integrity, and availability. Multiple Windows 10 versions are affected, with patches released to address the issue. The vendor advisory from Microsoft confirms the availability of an official fix.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code remotely on affected Windows 10 systems, potentially leading to full system compromise. The vulnerability impacts confidentiality, integrity, and availability of the system.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69586 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T21:18:49.123Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69586","vendor":"Microsoft"}]
Threat ID: 6aa04514acd9273b49fa966e
Added to database: 09/08/2026, 17:25:40 UTC
Last enriched: 10/16/2026, 21:23:05 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 26
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