CVE-2026-83780

Use after free in Windows CCFFilter Driver allows an unauthorized attacker to execute code over a network.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

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-2026-83780	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10_1607:::::::x64:*
	cpe:2.3:o:microsoft:windows_10_1607:::::::x86:*
	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_2016::::::::
	cpe:2.3:o:microsoft:windows_server_2019::::::::
	cpe:2.3:o:microsoft:windows_server_2022::::::::
	cpe:2.3:o:microsoft:windows_server_2025:::::::x64:*

History

02 Nov 2026, 12:59

Type	Values Removed	Values Added
First Time		Microsoft windows Server 2019 Microsoft Microsoft windows 10 1809 Microsoft windows Server 2016 Microsoft windows Server 2025 Microsoft windows Server 2022 Microsoft windows 10 1607
CPE		cpe:2.3:o:microsoft:windows_10_1809:::::::x64:* cpe:2.3:o:microsoft:windows_server_2025:::::::x64:* cpe:2.3:o:microsoft:windows_server_2022:::::::: cpe:2.3:o:microsoft:windows_10_1809:::::::x86:* cpe:2.3:o:microsoft:windows_server_2016:::::::: cpe:2.3:o:microsoft:windows_10_1607:::::::x64:* cpe:2.3:o:microsoft:windows_10_1607:::::::x86:* cpe:2.3:o:microsoft:windows_server_2019::::::::
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83780 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83780 - Patch, Vendor Advisory

13 Oct 2026, 19:20

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-13 19:20

Updated : 2026-11-02 12:59

NVD link : CVE-2026-83780

Mitre link : CVE-2026-83780

CVE.ORG link : CVE-2026-83780

JSON object : View

Products Affected

microsoft

windows_10_1607
windows_server_2016
windows_server_2019
windows_server_2025
windows_10_1809
windows_server_2022

CWE

CWE-416

Use After Free

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