CVE-2026-83780

Summary

A use-after-free vulnerability in the Windows CCFFilter driver allows remote attackers to execute arbitrary code with high privileges. This flaw occurs when the driver improperly handles memory after it has been freed, creating a potential path for privilege escalation and remote code execution.

Exploitability

Exploitation is relatively straightforward for skilled attackers with network access, requiring no user interaction or authentication, though it may require specific system configurations to achieve reliable code execution.

Blast radius

The vulnerability could impact a wide range of Windows systems that use the CCFFilter driver, potentially allowing attackers to gain full system compromise and execute malicious code remotely without any user interaction.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Apply the latest Windows updates from Microsoft's Security Response team that include patches for the CCFFilter driver, specifically targeting the Windows 10/11 versions affected by this vulnerability.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.