CVE-2026-54995: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the RMCAST driver of Windows 10 Version 1607 (build 10.0.14393.0). An attacker can exploit this flaw remotely to execute arbitrary code without user interaction or privileges. The CVSS 3.1 base score is 8.1, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to address this issue.
Potential Impact
Successful exploitation could allow remote code execution by an unauthenticated attacker, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability of the affected system.
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-2026-54995 to remediate this vulnerability.
CVE-2026-54995: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 8.1high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the RMCAST driver of Windows 10 Version 1607 (build 10.0.14393.0). An attacker can exploit this flaw remotely to execute arbitrary code without user interaction or privileges. The CVSS 3.1 base score is 8.1, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to address this issue.
Potential Impact
Successful exploitation could allow remote code execution by an unauthenticated attacker, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability of the affected system.
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-2026-54995 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-16T14:10:05.869Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54995","vendor":"Microsoft"}]
Threat ID: 6a566f7e68715ace43e6bc22
Added to database: 07/14/2026, 17:18:54 UTC
Last enriched: 08/13/2026, 15:25:48 UTC
Last updated: 08/25/2026, 22:52:12 UTC
Views: 50
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