CVE-2026-8049 CVE-2026-8049
Local attackers can exploit permissive kernel driver access to execute privileged IOCTLs, leading to privilege escalation and potential code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8049?
CVE-2026-8049 is a medium-severity vulnerability in SignalRGB kernel driver, published on 17 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-8049?
How do I fix CVE-2026-8049?
No fix has been published for CVE-2026-8049 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-8049 being exploited?
There is no known exploitation of CVE-2026-8049 in the wild and no public exploit code.
Sources
Also known as GHSA-c9xw-w9jw-mq5m.