CVE-2026-69530

Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69530	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10_1809:::::::x64:*
	cpe:2.3:o:microsoft:windows_10_1809:::::::x86:*
	cpe:2.3:o:microsoft:windows_server_2019:::::::x64:*
	cpe:2.3:o:microsoft:windows_server_2022:::::::x64:*
	cpe:2.3:o:microsoft:windows_server_2025:::::::x64:*

History

29 Sep 2026, 13:46

Type	Values Removed	Values Added
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69530 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69530 - Patch, Vendor Advisory
First Time		Microsoft windows Server 2025 Microsoft windows Server 2022 Microsoft windows 10 1809 Microsoft Microsoft windows Server 2019
CPE		cpe:2.3:o:microsoft:windows_10_1809:::::::x86:* cpe:2.3:o:microsoft:windows_server_2025:::::::x64:* cpe:2.3:o:microsoft:windows_server_2019:::::::x64:* cpe:2.3:o:microsoft:windows_server_2022:::::::x64:* cpe:2.3:o:microsoft:windows_10_1809:::::::x64:*

Information

Published : 2026-09-08 18:19

Updated : 2026-09-29 13:46

NVD link : CVE-2026-69530

Mitre link : CVE-2026-69530

CVE.ORG link : CVE-2026-69530

JSON object : View

Products Affected

microsoft

windows_server_2025
windows_server_2019
windows_10_1809
windows_server_2022

CWE

CWE-416

Use After Free

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