CVE-2026-50359: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Use after free in Microsoft XML Core Services allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-416 (Use After Free), exists in Microsoft XML Core Services on Windows 10 Version 1607 (build 10.0.14393.0). It allows a local attacker with authorized access to exploit a use-after-free condition to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.0, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability, as documented in their security update guide.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate privileges, potentially gaining higher-level access than intended. This could lead to full system compromise depending on the privileges escalated to. The vulnerability affects confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the security update provided by Microsoft for Windows 10 Version 1607 (build 10.0.14393.0) as soon as possible to remediate this issue.
CVE-2026-50359: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
Use after free in Microsoft XML Core Services allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-416 (Use After Free), exists in Microsoft XML Core Services on Windows 10 Version 1607 (build 10.0.14393.0). It allows a local attacker with authorized access to exploit a use-after-free condition to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.0, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability, as documented in their security update guide.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate privileges, potentially gaining higher-level access than intended. This could lead to full system compromise depending on the privileges escalated to. The vulnerability affects confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the security update provided by Microsoft for Windows 10 Version 1607 (build 10.0.14393.0) as soon as possible to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:48:26.815Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50359","vendor":"Microsoft"}]
Threat ID: 6a56769468715ace43f08d5a
Added to database: 07/14/2026, 17:49:08 UTC
Last enriched: 08/13/2026, 14:39:25 UTC
Last updated: 08/28/2026, 19:39:44 UTC
Views: 69
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