CVE-2026-69493: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1607
Description
CVE-2026-69493 is a critical out-of-bounds read vulnerability in the Windows Event Logging Service affecting multiple versions of Microsoft Windows 10, including Version 1607. This flaw allows an unauthorized attacker to execute code remotely over a network without user interaction or privileges. The vulnerability has a CVSS score of 9.8, indicating high impact on confidentiality, integrity, and availability. 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 2012
Microsoft
Windows Server 2012 (Server Core installation)
Microsoft
Windows Server 2012 R2
Microsoft
Windows Server 2012 R2 (Server Core installation)
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 (CVE-2026-69493) involves an out-of-bounds read in the Windows Event Logging Service on Microsoft Windows 10 Version 1607 and other specified versions. The flaw enables remote code execution by an unauthenticated attacker over the network. The CVSS v3.1 base score is 9.8, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. Microsoft has published an official fix addressing this issue.
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. No known exploits are reported in the wild at this time.
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-2026-69493 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T21:07:24.909Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69493","vendor":"Microsoft"}]
Threat ID: 6aa04501acd9273b49fa8137
Added to database: 09/08/2026, 17:25:21 UTC
Last enriched: 10/16/2026, 21:16:49 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 64
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