Medium severity · published Mar 17, 2026
CVE-2026-32291
GL-iNet Comet (GL-RM1) KVM unauthenticated root access via UART serial console
6.8
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CK
Comet KVM · GL-iNet
before 1.8.2 · source: vendor
CG
Comet Gl-rm1 Firmware · Gl-inet
before 1.8.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32291
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-32291
Release Notes
https://dl.gl-inet.com/release/kvm/release/RM1/1.8.2
Third Party Advisory
https://eclypsium.com/blog/your-kvm-is-the-weak-link-how-30-dollar-devices-can-own-your-entire-network/
Broken Link
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-26-076-01.json
Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2026-32291
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