Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessReach device management interface on network
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ExploitSupply hard-coded built-in password
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ExecutionAuthenticate as privileged user
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ImpactReconfigure or fully control device
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication No hard-coded passwords
MITRE ATT&CK
1 technique across 1 tactic: Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | 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. The primary limiting factors are exposure and secrecy of the credential: the device is a niche AV rack accessory typically deployed on internal/AV networks rather than the public internet, and an attacker must know the fixed credential value (trivially shared across all units once disclosed). |
| Impact | 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. No EPSS score, KEV listing, or SSVC decision data was supplied, and no POC reference is present, so real-world exploitation pressure is unquantified from this input. The practical risk hinges on network exposure: the hard-coded credential guarantees trivial access for anyone who learns it, but the product's niche footprint and typical LAN/AV-rack deployment likely limit internet-facing exposure, making this higher risk on flat internal networks than at scale. The 'Authentication Bypass' tag is a loose but defensible characterization of a hard-coded credential. |
| Exploit ScenarioDerived | An attacker on the same network segment as a CPTrans-ME-X device (or one able to route to its management interface) recovers the hard-coded password from firmware or a sibling advisory, then logs in directly without any legitimate account. With full authenticated access they can reconfigure or disrupt the AV signal path and, given the sibling command-injection issue on the same product, potentially pivot to code execution on the device. No user interaction or prior credential theft is required. |
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Alert meAnalysisAIv2 – Sep 04, 2026
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. No public exploit has been identified at time of analysis, and the product is niche, but the fixed credential makes exploitation trivial once the value is known.
Earlier versions of this analysis (1)
Hard-coded password authentication in XING Inc.'s CPTrans-ME-X device lets any remote party who knows the built-in credential log in and gain full control (CWE-259). The flaw is unauthenticated and requires no user interaction, and it was coordinated through JPCERT/CC (JVN32505330). No public exploit is identified at time of analysis, but the credential itself is the exploit once disclosed.
RemediationAI
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. Because the credential is hard-coded and cannot be changed by the operator, compensating controls are essential: isolate CPTrans-ME-X units on a dedicated management VLAN with no internet reachability, restrict access to the device's management interface/port to a small allowlist of trusted administrative hosts via firewall or ACL, and place the devices behind a VPN or jump host so the fixed credential is never reachable from general network segments. These network-isolation controls do not remove the credential but sharply reduce who can reach it; the trade-off is added operational friction for legitimate management and no protection against an attacker already on the management segment.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
CPTrans-ME-X (CPE cpe:2.3:a:xing_inc.:xing_cptrans-me-x) is a rack/AV signal-transport accessory distributed under the JOYSOUND brand. The root cause is CWE-259, Use of a Hard-coded Password: a credential compiled or baked into the firmware/management interface that cannot be changed by operators and is identical across all deployed units. Once the value is recovered - from firmware extraction, documentation leakage, or a sibling advisory - every device sharing that firmware becomes accessible with the same login, since the secret is not per-device. This device family has been subject to multiple coordinated JPCERT findings (see CVE-2026-62928 OS command injection and CVE-2026-69657 default password), indicating systemic weaknesses in its management plane.
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Severity by source
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
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.
Primary rating from Vendor (jpcert).
CVSS VectorVendor: jpcert
Lifecycle Timeline
4DescriptionCVE.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.
Executive ViewAI
XING Inc.'s CPTrans-ME-X AV signal-transport appliance contains hard-coded credentials that allow any network-connected attacker to gain full administrative control with no patch available. Organizations using this appliance for audio/video signal transport are at immediate risk of complete infrastructure compromise through trivial exploitation.
No vendor-released patch identified at time of analysis. Interim mitigations: (1) Restrict network access to CPTrans-ME-X devices using host-based firewall rules and network segmentation (dedicated VLAN with no untrusted connectivity); (2) Implement continuous monitoring and alerting on inbound management-port access attempts; (3) Verify with XING Inc. whether the hard-coded credential can be changed or whether firmware updates address the flaw; (4) Document all CPTrans-ME-X deployments for prioritized replacement planning.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
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