CVE-2026-62784: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Heap-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability involves a heap-based buffer overflow in the lsasrv service on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires an attacker with some level of authorization to the system and allows remote code execution. The vulnerability is tracked as CWE-122 and has been assigned CVE-2026-62784. Microsoft has published an official fix to remediate the issue.
Potential Impact
Successful exploitation could allow an authorized attacker to execute arbitrary code remotely, potentially leading to full system compromise with high confidentiality, integrity, and availability impact.
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-2026-62784 to remediate this vulnerability.
CVE-2026-62784: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
Heap-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to execute code over a network.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap-based buffer overflow in the lsasrv service on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires an attacker with some level of authorization to the system and allows remote code execution. The vulnerability is tracked as CWE-122 and has been assigned CVE-2026-62784. Microsoft has published an official fix to remediate the issue.
Potential Impact
Successful exploitation could allow an authorized attacker to execute arbitrary code remotely, potentially leading to full system compromise with high confidentiality, integrity, and availability impact.
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-2026-62784 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T21:04:04.257Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62784","vendor":"Microsoft"}]
Threat ID: 6a7b5816bf8831d539155f23
Added to database: 08/11/2026, 17:12:54 UTC
Last enriched: 08/11/2026, 21:42:24 UTC
Last updated: 08/12/2026, 03:21:07 UTC
Views: 3
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