CVE-2026-32291

GL-iNet Comet (GL-RM1) KVM unauthenticated root access via UART serial console

MEDIUM
6.8
CVSS Score
Published: March 17, 2026 at 05:18 PM UTC
Updated: June 17, 2026 at 10:35 AM UTC
2 products affected across 1 vendorComet Gl RM1 FirmwareGL-RM1

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

The GL-iNet Comet (GL-RM1) KVM does not require authentication on the UART serial console. This attack requires physically opening the device and connecting to the UART pins.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.8.2
gl-inet-comet-gl-rm1 (same device)
v < 1.8.2
Vendor states this is fixed in 1.8.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.8MEDIUMcisa-cg
Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-306

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