HIGH
CVE-2019-6520
CWE-284Published: March 5, 2019· Updated: Jun 17, 2026
7.5
CVSS v3.1
Official Description
Moxa IKS and EDS does not properly check authority on server side, which results in a read-only user being able to perform arbitrary configuration changes.
Technical Analysis
CVE-2019-6520 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Vendors & Products
moxa8 product(s)
iks-g6824a firmwareiks-g6824aeds-405a firmwareeds-405aeds-408a firmwareeds-408aeds-510a firmwareeds-510a
Source: NVD CPE · 8 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (4)
→
http://www.securityfocus.com/bid/107178Third Party Advisory · VDB Entry
→
https://ics-cert.us-cert.gov/advisories/ICSA-19-057-01Third Party Advisory · US Government Resource
→
http://www.securityfocus.com/bid/107178Third Party Advisory · VDB Entry
→
https://ics-cert.us-cert.gov/advisories/ICSA-19-057-01Third Party Advisory · US Government Resource
Quick Facts
CVE IDCVE-2019-6520
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-284
CISA KEVNo
Affected1 vendor(s)
PublishedMar 5, 2019
Related CVEs (CWE-284)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-6520 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.