GL-iNet Comet (GL-RM1) KVM insufficient firmware verification

Summary

CVECVE-2026-32290
StatePUBLISHED
Assignercisa-cg
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-17 18:16:15 UTC
Updated2026-04-27 12:35:51 UTC
DescriptionThe GL-iNet Comet (GL-RM1) KVM before version 1.8.2 does not sufficiently verify the authenticity of uploaded firmware files. An attacker-in-the-middle or a compromised update server could modify the firmware and the corresponding MD5 hash to pass verification.

Risk And Classification

Primary CVSS: v4.0 7 HIGH from 9119a7d8-5eab-497f-8521-727c672e3725

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H/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

EPSS: 0.000070000 probability, percentile 0.006080000 (date 2026-04-27)

Problem Types: CWE-345 | CWE-345 CWE-345 Insufficient Verification of Data Authenticity


VersionSourceTypeScoreSeverityVector
4.09119a7d8-5eab-497f-8521-727c672e3725Secondary7HIGHCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H/E:X/C...
4.0CNADECLARED7HIGHCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H
3.19119a7d8-5eab-497f-8521-727c672e3725Secondary4.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
3.1CNADECLARED4.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
Active
Confidentiality
None
Integrity
High
Availability
None
Sub Conf.
High
Sub Integrity
High
Sub Availability
High

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H/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

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Gl-inet Comet Gl-rm1 All All All All
Operating System Gl-inet Comet Gl-rm1 Firmware All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA GL-iNet Comet KVM affected 1.8.2 custom Not specified
CNA GL-iNet Comet KVM unaffected 1.8.2 Not specified

References

ReferenceSourceLinkTags
raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-26-076-01.json 9119a7d8-5eab-497f-8521-727c672e3725 raw.githubusercontent.com Broken Link
www.cve.org/CVERecord 9119a7d8-5eab-497f-8521-727c672e3725 www.cve.org Third Party Advisory
eclypsium.com/blog/your-kvm-is-the-weak-link-how-30-dollar-devices-can-own-... 9119a7d8-5eab-497f-8521-727c672e3725 eclypsium.com Third Party Advisory
dl.gl-inet.com/release/kvm/release/RM1/1.8.2 9119a7d8-5eab-497f-8521-727c672e3725 dl.gl-inet.com Release Notes
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Reynaldo Vasquez Garcia, Eclypsium (en)

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