CVE-2026-32291 GL-iNet Comet (GL-RM1) KVM unauthenticated root access via UART serial console
An attacker with physical access can gain unauthenticated root privileges via the UART serial console on GL-iNet Comet KVM devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-32291?
CVE-2026-32291 is a high-severity authentication bypass vulnerability in GL-iNet Comet KVM, published on 17 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The GL-iNet Comet (GL-RM1) KVM before 1.8.2 does not require authentication on the UART serial console. This attack requires physically opening the device and connecting to the UART pins.
Weakness: CWE-306
Which versions are affected by CVE-2026-32291?
It affects 1 product.
Products include Gl-Inet Comet Gl-Rm1 Firmware.
How do I fix CVE-2026-32291?
No fix has been published for CVE-2026-32291 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-32291 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32291 exists.
Other vulnerabilities in GL-iNet Comet KVM
Sources
Also known as GHSA-ffq4-j9j8-23g6.