CVE-2026-50509: CWE-502: Deserialization of Untrusted Data in Microsoft Windows 10 Version 1607
Deserialization of untrusted data in Windows Wireless Wide Area Network Service allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50509) affects Windows 10 Version 1607 (build 10.0.14393.0) and is caused by improper deserialization of untrusted data in the Windows Wireless Wide Area Network Service. Exploitation requires local access with some privileges and can lead to privilege escalation. The vulnerability has been assigned a CVSS v3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate their privileges on the affected system. This can lead to full system compromise, impacting confidentiality, integrity, and availability of the system.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50509 to remediate this vulnerability.
CVE-2026-50509: CWE-502: Deserialization of Untrusted Data in Microsoft Windows 10 Version 1607
Description
Deserialization of untrusted data in Windows Wireless Wide Area Network Service allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50509) affects Windows 10 Version 1607 (build 10.0.14393.0) and is caused by improper deserialization of untrusted data in the Windows Wireless Wide Area Network Service. Exploitation requires local access with some privileges and can lead to privilege escalation. The vulnerability has been assigned a CVSS v3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate their privileges on the affected system. This can lead to full system compromise, impacting confidentiality, integrity, and availability of the system.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50509 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T19:00:41.292Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50509","vendor":"Microsoft"}]
Threat ID: 6a5676a768715ace43f09686
Added to database: 07/14/2026, 17:49:27 UTC
Last enriched: 07/14/2026, 22:49:32 UTC
Last updated: 07/15/2026, 04:18:39 UTC
Views: 2
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