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CVE-2026-54995: CWE-416: Use After Free in Microsoft Windows 10 Version 1607

0
High
VulnerabilityCVE-2026-54995cvecve-2026-54995cwe-416
Published: 07/14/2026 (07/14/2026, 17:04:56 UTC)
Source: CVE Database V5
Vendor/Project: Microsoft
Product: 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

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Affected software

Affected versions
10.0.14393.0

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/14/2026, 17:50:43 UTC

Technical Analysis

This vulnerability (CVE-2026-54995) involves a use-after-free condition in the Reliable Multicast Transport Driver component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). Exploitation could allow an attacker to execute arbitrary code remotely without user interaction, given the network attack vector. The vulnerability has been assigned a CVSS v3.1 base score of 8.1, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this vulnerability, as documented in their security update guide.

Potential Impact

Successful exploitation of this vulnerability could lead to remote code execution by an unauthorized attacker, potentially resulting in full system compromise including complete control over the affected Windows 10 Version 1607 system. The vulnerability affects confidentiality, integrity, and availability of the system.

Mitigation Recommendations

An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1607 as soon as possible to remediate this vulnerability. Refer to the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54995 for detailed patch information and deployment instructions.

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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: 07/14/2026, 17:50:43 UTC

Last updated: 07/14/2026, 20:03:47 UTC

Views: 2

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