Security readout for executives and security teams
Plain-English summary
CVE-2017-14439 is a denial-of-service flaw in Moxa EDR-810 V4.1 build 17030317. If the affected Service Agent is reachable over the network, an unauthenticated attacker may be able to disrupt device availability. The sources do not state data theft or control-system takeover.
Executive priority
Prioritize remediation for exposed or business-critical Moxa EDR-810 devices because disruption could affect network availability. Treat isolated, non-critical devices as lower urgency while still tracking vendor guidance.
Technical view
The CVE describes a remotely reachable Service Agent denial of service triggered by specially crafted large network traffic to TCP port 4001. CVSS v3.0 is 7.5 high: network attack vector, low complexity, no privileges, no user interaction, and high availability impact only.
Likely exposure
Exposure is most relevant where Moxa EDR-810 V4.1 build 17030317 devices have the Service Agent reachable from untrusted networks. Evidence provided does not identify other affected versions or products.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. The issue is still serious because the CVSS vector indicates remote unauthenticated denial of service with low attack complexity.
Researcher notes
The provided evidence supports only availability impact against Moxa EDR-810 V4.1 build 17030317. No CWE, patch details, proof of exploitation, or broader version range is included in the bundle.
Mitigation direction
- Check Moxa or device-maintainer guidance for fixed firmware or supported mitigations.
- Restrict access to TCP 4001 to trusted management networks only.
- Remove internet exposure for affected devices and place them behind controlled network boundaries.
- Monitor affected devices for unexpected Service Agent failures or availability drops.
Validation and detection
- Inventory Moxa EDR-810 devices and record firmware build numbers.
- Confirm whether V4.1 build 17030317 is present in production or lab networks.
- Review firewall and segmentation rules for access to TCP 4001.
- Check vendor advisories before changing firmware or operational settings.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2017-14439 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.5HighVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0487CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.