JetKVM insufficient firmware verification

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-32294
StatePUBLISHED
Assignercisa-cg
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-17 18:16:16 UTC
Updated2026-04-10 01:29:42 UTC
DescriptionJetKVM prior to 0.5.4 does not verify the authenticity of downloaded firmware files. An attacker-in-the-middle or a compromised update server could modify the firmware and the corresponding SHA256 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: 0.000030000 probability, percentile 0.001020000 (date 2026-04-11)

Problem Types: CWE-345 | CWE-347 | CWE-345 CWE-345 Insufficient Verification of Data Authenticity | CWE-347 CWE-347 Improper Verification of Cryptographic Signature

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
Application Jetkvm Kvm All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA JetKVM JetKVM affected 0.5.4 custom Not specified
CNA JetKVM JetKVM unaffected 0.5.4 Not specified

References

ReferenceSourceLinkTags
eclypsium.com/blog/kvm-devices-the-keys-to-your-kingdom-are-hanging-on-the-... 9119a7d8-5eab-497f-8521-727c672e3725 eclypsium.com Third Party Advisory
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
github.com/jetkvm/kvm/releases/tag/release%2F0.5.4 9119a7d8-5eab-497f-8521-727c672e3725 github.com Release Notes
www.cve.org/CVERecord 9119a7d8-5eab-497f-8521-727c672e3725 www.cve.org Third Party Advisory
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Paul Asadoorian, Eclypsium (en)

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