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CVE Record

CVE-2017-14436: An exploitable denial of service vulnerability exists in the web server functionality of Moxa EDR-810 V4.1...

An exploitable denial of service vulnerability exists in the web server functionality of Moxa EDR-810 V4.1 build 17030317. A specially crafted HTTP URI can cause a null pointer dereference resulting in denial of service. An attacker can send a GET request to "/MOXA\_CFG2.ini" without a cookie header to trigger this vulnerability.

HighCVSS 7.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2017-14436 can let an unauthenticated network attacker crash the web server component on a specific Moxa EDR-810 firmware build. The business impact is availability: affected devices may stop serving management web functions until recovered, which can disrupt operations that depend on remote administration.

Executive priority

Prioritize remediation for exposed or operationally critical devices. This is not a confidentiality breach based on available sources, but a remotely triggerable outage in security infrastructure can still create operational risk.

Technical view

The issue is a null pointer dereference in the web server functionality of Moxa EDR-810 V4.1 build 17030317. A specially crafted HTTP request can trigger denial of service. CVSS 3.0 is 7.5 because it is network reachable, low complexity, unauthenticated, and affects availability only.

Likely exposure

Exposure is limited to Moxa EDR-810 devices running V4.1 build 17030317 with the web server reachable over the network. Risk is highest where management interfaces are exposed to untrusted networks or the internet.

Exploitation context

The provided sources describe an exploitable denial-of-service condition, but do not show CISA KEV listing or confirmed active exploitation. Treat exploitation as plausible where the web interface is reachable, not as confirmed in the wild.

Researcher notes

Evidence supports one affected firmware build, a web server null pointer dereference, and availability impact. Sources do not provide a confirmed patch status, KEV status, or broad version range, so avoid assuming additional affected releases or active exploitation.

Mitigation direction

  • Identify Moxa EDR-810 devices running V4.1 build 17030317.
  • Check Moxa and Talos guidance for fixed firmware or vendor-approved workarounds.
  • Restrict web management access to trusted administration networks or VPNs.
  • Block untrusted access to the device web server at network boundaries.
  • Prepare operational recovery procedures for affected device management outages.

Validation and detection

  • Inventory Moxa EDR-810 firmware versions and web management exposure.
  • Confirm whether any affected build is reachable from untrusted networks.
  • Review logs or monitoring for unexplained web server crashes or device management outages.
  • Verify compensating access controls limit management access to trusted administrators.
  • Document whether vendor remediation guidance has been applied or is unavailable.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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-2017-14436 mapping review

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Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.0HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

7.5High
CVSS 3.0 vector shape for CVE-2017-14436Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
TalosMoxaMoxa EDR-810 V4.1 build 17030317Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.