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Eds 405A Firmware CVE-2019-6559

MEDIUM
Uncontrolled Resource Consumption (CWE-400)
2019-03-05 ics-cert@hq.dhs.gov
6.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Resource consumption limits
MITRE ATT&CK

1 technique across 1 tactic: Impact

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required.

Exploit ScenarioDerived

A remote attacker could cause denial of service by exhausting system resources by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 2.4% exploitation probability (EPSS)

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AnalysisAI

Moxa IKS and EDS allow remote authenticated users to cause a denial of service via a specially crafted packet, which may cause the switch to crash. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. Moxa IKS and EDS allow remote authenticated users to cause a denial of service via a specially crafted packet, which may cause the switch to crash. Affected products include: Moxa Iks-G6824A Firmware, Moxa Eds-405A Firmware, Moxa Eds-408A Firmware, Moxa Eds-510A Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionNVD

Moxa IKS and EDS allow remote authenticated users to cause a denial of service via a specially crafted packet, which may cause the switch to crash.

Threat Intelligence Overview

EPSS Score
2.4%
Top 18% exploitable
Data Quality
2 sources
Confidence: Low

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.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 2.4%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

34
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:o:moxa:iks-g6824a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:eds-405a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:eds-408a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:eds-510a_firmware:*:*:*:*:*:*:*:*
CVE-2019-6526 CRITICAL
9.8 Apr 15

Moxa IKS-G6824A series Versions 4.5 and prior, EDS-405A series Version 3.8 and prior, EDS-408A series Version 3.8 and pr

CVE-2019-6563 CRITICAL
9.8 Mar 05

Moxa IKS and EDS generate a predictable cookie calculated with an MD5 hash, allowing an attacker to capture the administ

CVE-2019-6557 CRITICAL
9.8 Mar 05

Several buffer overflow vulnerabilities have been identified in Moxa IKS and EDS, which may allow remote code execution.

CVE-2019-6524 CRITICAL
9.8 Mar 05

Moxa IKS and EDS do not implement sufficient measures to prevent multiple failed authentication attempts, which may allo

CVE-2019-6522 CRITICAL
9.1 Mar 05

Moxa IKS and EDS fails to properly check array bounds which may allow an attacker to read device memory on arbitrary add

CVE-2019-6561 HIGH
8.8 Mar 05

Cross-site request forgery has been identified in Moxa IKS and EDS, which may allow for the execution of unauthorized ac

CVE-2015-6464 HIGH
8.5 Sep 11

The administrative web interface on Moxa EDS-405A and EDS-408A switches with firmware before 3.6 allows remote authentic

CVE-2019-6520 HIGH
7.5 Mar 05

Moxa IKS and EDS does not properly check authority on server side, which results in a read-only user being able to perfo

CVE-2019-6518 HIGH
7.5 Mar 05

Moxa IKS and EDS store plaintext passwords, which may allow sensitive information to be read by someone with access to t

CVE-2015-6465 MEDIUM
6.8 Sep 11

The GoAhead web server on Moxa EDS-405A and EDS-408A switches with firmware before 3.6 allows remote authenticated users

CVE-2019-6565 MEDIUM
6.1 Mar 05

Moxa IKS and EDS fails to properly validate user input, giving unauthenticated and authenticated attackers the ability t

CVE-2015-6466 MEDIUM
4.3 Sep 11

Cross-site scripting (XSS) vulnerability in the Diagnosis Ping feature in the administrative web interface on Moxa EDS-4

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