CVE-2026-8049: Signalrgb Kernel Driver

Medium severity, CVSS 5.3. EPSS: 0.1% chance of exploitation in the next 30 days.

In SignalRGB versions prior to 1.3.7.0, the \\.\SignalIo device object is created without an explicit SDDL security descriptor and without FILE_DEVICE_SECURE_OPEN. This results in overly permissive default access control, allowing any authenticated local user to obtain a handle to the device and issue privileged IOCTLs.

Affected products

• Signalrgb Signalrgb Kernel Driver: before 1.3.7.0 (fixed in 1.3.7.0)

Published 2026-06-17. Last modified 2026-06-22.