Moxa IKS and EDS generate a predictable cookie calculated with an MD5 hash, allowing an attacker to capture the administrator's password, wh
Moxa IKS and EDS generate a predictable cookie calculated with an MD5 hash, allowing an attacker to capture the administrator's password, which could lead to a full compromise of the device.
- Published
- Mar 5, 2019
- Updated
- Jun 16, 2026
- EPSS
- 1.7% · 77th percentile
- CWE
- CWE-341
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
40
Plan
Add it to your regular patch cycle.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 1.7%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| moxa | iks-g6824a firmware | cpe:2.3:o:moxa:iks-g6824a_firmware |
| moxa | iks-g6824a | cpe:2.3:h:moxa:iks-g6824a |
| moxa | eds-405a firmware | cpe:2.3:o:moxa:eds-405a_firmware |
| moxa | eds-405a | cpe:2.3:h:moxa:eds-405a |
| moxa | eds-408a firmware | cpe:2.3:o:moxa:eds-408a_firmware |
| moxa | eds-408a | cpe:2.3:h:moxa:eds-408a |
| moxa | eds-510a firmware | cpe:2.3:o:moxa:eds-510a_firmware |
| moxa | eds-510a | cpe:2.3:h:moxa:eds-510a |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- moxa eds-405a firmwareup to 3.8 inclusive
- moxa eds-408a firmwareup to 3.8 inclusive
- moxa eds-510a firmwareup to 3.8 inclusive
- moxa iks-g6824a firmwareup to 4.5 inclusive
Versions reported by the vendor
Affected version ranges reported by the assigning authority (icscert). Independent of NVD's CPE analysis and usually ahead of it.
ICS-CERT Moxa IKS, EDS
- IKS-G6824A series Versions 4.5 and prior, EDS-405A series Version 3.8 and prior, EDS-408A series Version 3.8 and prior, and EDS-510A series Version 3.8 and prioraffected
Same product
moxa: all recordsOther highest-scoring records for the same primary product.
- CVE-2019-6557Several buffer overflow vulnerabilities have been identified in Moxa IKS and EDS, which may allow remote code execution.41Plan
- CVE-2019-6524Moxa IKS and EDS do not implement sufficient measures to prevent multiple failed authentication attempts, which may allow an attacker to dis40Plan
- CVE-2019-6526Moxa IKS-G6824A series Versions 4.5 and prior, EDS-405A series Version 3.8 and prior, EDS-408A series Version 3.8 and prior, and EDS-510A se39Monitor
- CVE-2019-6522Moxa IKS and EDS fails to properly check array bounds which may allow an attacker to read device memory on arbitrary addresses, and may allo37Monitor
- CVE-2019-6561Cross-site request forgery has been identified in Moxa IKS and EDS, which may allow for the execution of unauthorized actions on the device.35Monitor
- CVE-2019-6520Moxa IKS and EDS does not properly check authority on server side, which results in a read-only user being able to perform arbitrary configu30Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-341 · Predictable from Observable StateCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.