CVE-2026-8049
Medium · 5.3CVSS
5.3
EPSS
0.1%
Published
Jun 17, 2026
CISA due date
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The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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