What’s Vulnerable › Vulnerabilities

CVE-2026-32291: GL-iNet Comet (GL-RM1) KVM unauthenticated root access via UART serial console

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-17 · updated 2026-06-17
• Weakness: CWE-306

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.

Affected products

• GL-iNet Comet KVM: before 1.8.2 — fixed in 1.8.2

How to fix

Upgrade to a fixed version: GL-iNet Comet KVM 1.8.2. Check the vendor advisory for mitigations.

References

• https://dl.gl-inet.com/release/kvm/release/RM1/1.8.2
• https://eclypsium.com/blog/your-kvm-is-the-weak-link-how-30-dollar-devices-can-own-your-entire-network/
• https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-26-076-01.json
• https://www.cve.org/CVERecord?id=CVE-2026-32291

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