CVE-2026-45599: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Use after free in Universal Plug and Play (upnp.dll) allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the upnp.dll module of Windows 10 Version 1607. Exploitation could allow remote code execution by an attacker without privileges or user interaction. The CVSS vector indicates network attack vector, high attack complexity, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. Microsoft has published an official fix addressing this issue.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code remotely, potentially leading to full system compromise including complete confidentiality, integrity, and availability loss on affected systems running Windows 10 Version 1607 (build 10.0.14393.0).
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-2026-45599 to remediate this vulnerability.
CVE-2026-45599: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
Use after free in Universal Plug and Play (upnp.dll) allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 8.1high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the upnp.dll module of Windows 10 Version 1607. Exploitation could allow remote code execution by an attacker without privileges or user interaction. The CVSS vector indicates network attack vector, high attack complexity, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. Microsoft has published an official fix addressing this issue.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code remotely, potentially leading to full system compromise including complete confidentiality, integrity, and availability loss on affected systems running Windows 10 Version 1607 (build 10.0.14393.0).
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-2026-45599 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T19:55:45.730Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45599","vendor":"Microsoft"}]
Threat ID: 6a284ce48dd33fbd85664e58
Added to database: 6/9/2026, 5:27:00 PM
Last enriched: 6/9/2026, 7:10:38 PM
Last updated: 6/10/2026, 6:23:40 AM
Views: 5
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