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XING CPTrans-ME-X CVE-2026-66840

| EUVDEUVD-2026-70917 HIGH
Exposure of Sensitive System Information to an Unauthorized Control Sphere (CWE-497)
2026-09-04 jpcert GHSA-fhhq-q67p-8cvj
8.7
CVSS 4.0 · Vendor: jpcert
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Severity by source

Vendor (jpcert) PRIMARY
8.7 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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
7.5 HIGH

Network-accessible unauthenticated disclosure with no integrity or availability impact; scope unchanged as no lateral movement or secondary system compromise is described.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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 - 07:32 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
7.5 (HIGH) 8.7 (HIGH)
Analysis Generated
Sep 04, 2026 - 07:17 vuln.today
CVE Published
Sep 04, 2026 - 06:31 cve.org
HIGH 7.5

DescriptionCVE.org

XING CPTrans-ME-X contains an Exposure of Sensitive System Information to an Unauthorized Control Sphere (CWE-497). Sensitive system information may be leaked.

AnalysisAI

Sensitive system information exposure in XING CPTrans-ME-X (a rack-mounted accessory from XING Inc., distributed under the JOYSOUND product ecosystem) allows unauthenticated remote attackers to retrieve confidential system details over the network without any privileges or user interaction. Classified as CWE-497 (Exposure of Sensitive System Information to an Unauthorized Control Sphere), the vulnerability was reported by JPCERT and documented in JVN advisory JVN#32505330. …

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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 No special authentication, privileges, or user interaction are required - the CVSS 4.0 vector (PR:N, UI:N, AC:L, AT:N) confirms fully unauthenticated exploitation against any network-reachable CPTrans-ME-X device. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 8.7 accurately reflects the high-confidentiality, unauthenticated, network-accessible nature of the disclosure, with no attack requirements or user interaction needed. … 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 Consult the JVN advisory at https://jvn.jp/en/jp/JVN32505330/ for vendor-issued guidance, as no specific patched version has been confirmed in the available intelligence. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, identify all XING CPTrans-ME-X devices in your environment and verify their network accessibility. …

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CVE-2026-66840 vulnerability details – vuln.today

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