CVE-2026-83780: Windows CCFFilter Driver Remote Code Execution Vulnerability
Use after free in Windows CCFFilter Driver allows an unauthorized attacker to execute code over a network.
Other sources
Windows CCFFilter Driver Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9612Patch KB5126868 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33650Patch KB5126646 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9376Patch KB5126651 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5761Patch KB5126655
Event History
Frequently Asked Questions
Which systems are identified as affected?
The affected software list includes Microsoft Windows 10 and Microsoft Windows Server 2016, 2019, 2022, and 2025.
Does exploitation require credentials or user interaction?
No. The supplied severity vector identifies network attack access, low attack complexity, no required privileges, and no user interaction.