CVE-2026-69628: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
CVE-2026-69628 is a heap-based buffer overflow vulnerability in the Windows iSCSI component affecting multiple versions of Microsoft Windows 10, including Version 1607. This flaw allows an authorized attacker to execute arbitrary code remotely over a network. The vulnerability has a high severity with a CVSS score of 8.8. Microsoft has released official fixes addressing this issue.
CVSS v3.1
Score 8.8high
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 is a heap-based buffer overflow in the Windows iSCSI service that can be exploited by an authorized attacker to execute arbitrary code remotely. It affects multiple builds of Windows 10, including Version 1607 and later builds up to specific patched versions. The vulnerability has been assigned CVE-2026-69628 and is tracked under CWE-122. The CVSS v3.1 score is 8.8, indicating high severity with network attack vector, low attack complexity, and requiring privileges but no user interaction. Microsoft has issued official patches to remediate this vulnerability.
Potential Impact
Successful exploitation allows an authorized attacker to execute arbitrary code remotely over the network, potentially leading to full system compromise with high confidentiality, integrity, and availability impact.
Mitigation Recommendations
Microsoft has released official patches to fix this vulnerability. Users and administrators should apply the security updates provided by Microsoft as soon as possible to mitigate the risk. Since an official fix is available, no additional temporary mitigations are required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T21:21:00.596Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69628","vendor":"Microsoft"}]
Threat ID: 6aa0451aacd9273b49fa976c
Added to database: 09/08/2026, 17:25:46 UTC
Last enriched: 10/16/2026, 21:25:53 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 24
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