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CPTrans-ME-X EUVDEUVD-2026-70919

| CVE-2026-70403 CRITICAL
Use of Hard-coded Password (CWE-259)
2026-09-04 jpcert GHSA-cmq2-8jv5-p6pw
9.3
CVSS 4.0 · Vendor: jpcert
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Severity by source

Vendor (jpcert) PRIMARY
9.3 CRITICAL
CVSS:4.0/AV:N/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
vuln.today AI
9.8 CRITICAL

Remote unauthenticated login via a fixed credential yields full device control, so AV:N/AC:L/PR:N/UI:N with C/I/A:H and no scope change.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (jpcert).

CVSS VectorVendor: jpcert

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

6
Patch available
Sep 04, 2026 - 08:01 EUVD
Analysis Updated
Sep 04, 2026 - 07:28 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Sep 04, 2026 - 07:22 vuln.today
cvss_changed
CVSS changed
Sep 04, 2026 - 07:22 NVD
9.8 (CRITICAL) 9.3 (CRITICAL)
Analysis Generated
Sep 04, 2026 - 07:18 vuln.today
CVE Published
Sep 04, 2026 - 06:31 cve.org
CRITICAL 9.8

DescriptionCVE.org

XING CPTrans-ME-X contains a Use of Hard-coded Password (CWE-259). Anyone with the knowledge of the credential may log in to the affected device.

AnalysisAI

Unauthenticated device login in XING Inc.'s CPTrans-ME-X AV signal-transport appliance is possible via a hard-coded password (CWE-259): anyone who knows the built-in credential can authenticate over the network and gain full control of the device. The flaw was coordinated through JPCERT/CC (JVN JVN32505330) and carries a CVSS 4.0 base score of 9.3 with high confidentiality, integrity, and availability impact. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Exploit
technique details hidden
Execution
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation Exploitation requires network reachability to the CPTrans-ME-X management/login interface and knowledge of the hard-coded password embedded in the device firmware; per CVSS AV:N/AC:L/PR:N/UI:N there is no authentication, user interaction, or special runtime configuration needed once the interface is reachable and the credential is known. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N, VC:H/VI:H/VA:H, score 9.3) describes a remote, low-complexity, unauthenticated attack with full compromise of the vulnerable system and no scope change to other systems - consistent with a network-reachable management login protected only by a fixed secret. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation No vendor-released patch version is identified at time of analysis in the supplied references; consult the JVN advisory at https://jvn.jp/en/jp/JVN32505330/ and the vendor/distributor page at https://joysound.biz/product/other/rack_accessories/cptrans-me-x for firmware updates and vendor guidance. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Inventory all CPTrans-ME-X installations and immediately implement firewall rules restricting network access to only authorized users and systems; check if XING Inc. …

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EUVD-2026-70919 vulnerability details – vuln.today

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