VulnerabilityDeferred

CVE-2026-8049

This results in overly permissive default access control, allowing any authenticated local user to obtain a handle to the device and issue privileged IOCTLs.

MEDIUM 5.3EPSS 0.11%

Does this matter?

Lower severity and a low EPSS score (0.11%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 3.1: 5.3 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS: 0.11% probability · 2th percentile
CISA KEV: Not listed
Source: cret@cert.org

References

https://kb.cert.org/vuls/id/380058

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.