CVE-2026-32291

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 v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.9 / Impact : 5.9

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:gl-inet:comet_gl-rm1_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:gl-inet:comet_gl-rm1:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-17 18:16

Updated : 2026-06-17 10:35

NVD link : CVE-2026-32291

Mitre link : CVE-2026-32291

CVE.ORG link : CVE-2026-32291

JSON object : View

Products Affected

gl-inet

comet_gl-rm1_firmware
comet_gl-rm1

CWE

CWE-306

Missing Authentication for Critical Function

{"id": "CVE-2026-32291", "cveTags": [], "metrics": {"ssvcV203": [{"source": "9119a7d8-5eab-497f-8521-727c672e3725", "ssvcData": {"id": "CVE-2026-32291", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-03-10T17:28:38.117871Z"}}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-32291", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-03-17T18:12:47.629054Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "9119a7d8-5eab-497f-8521-727c672e3725", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.8, "attackVector": "PHYSICAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.9}], "cvssMetricV40": [{"type": "Secondary", "source": "9119a7d8-5eab-497f-8521-727c672e3725", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.0, "Automatable": "NOT_DEFINED", "attackVector": "PHYSICAL", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "9119a7d8-5eab-497f-8521-727c672e3725", "affectedData": [{"vendor": "GL-iNet", "product": "Comet KVM", "versions": [{"status": "affected", "version": "0", "lessThan": "1.8.2", "versionType": "custom"}, {"status": "unaffected", "version": "1.8.2"}], "defaultStatus": "unknown"}]}], "published": "2026-03-17T18:16:16.057", "references": [{"url": "https://dl.gl-inet.com/release/kvm/release/RM1/1.8.2", "tags": ["Release Notes"], "source": "9119a7d8-5eab-497f-8521-727c672e3725"}, {"url": "https://eclypsium.com/blog/your-kvm-is-the-weak-link-how-30-dollar-devices-can-own-your-entire-network/", "tags": ["Third Party Advisory"], "source": "9119a7d8-5eab-497f-8521-727c672e3725"}, {"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-26-076-01.json", "tags": ["Broken Link"], "source": "9119a7d8-5eab-497f-8521-727c672e3725"}, {"url": "https://www.cve.org/CVERecord?id=CVE-2026-32291", "tags": ["Third Party Advisory"], "source": "9119a7d8-5eab-497f-8521-727c672e3725"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "9119a7d8-5eab-497f-8521-727c672e3725", "description": [{"lang": "en", "value": "CWE-306"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "El KVM GL-iNet Comet (GL-RM1) no requiere autenticaci\u00f3n en la consola serie UART. Este ataque requiere abrir f\u00edsicamente el dispositivo y conectarse a los pines UART."}], "lastModified": "2026-06-17T10:35:30.393", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:gl-inet:comet_gl-rm1_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B7F6724F-6272-4F2F-BE81-DA9638AC0FD7", "versionEndExcluding": "1.8.2"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:gl-inet:comet_gl-rm1:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "8FB81934-02A0-4324-B96C-6BE3A8F7568B"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725"}