MEDIUM
CVE-2020-6999
CWE-120Published: March 26, 2020· Updated: Jun 17, 2026
6.5
CVSS v3.1
Official Description
In Moxa EDS-G516E Series firmware, Version 5.2 or lower, some of the parameters in the setting pages do not ensure text is the correct size for its buffer.
Technical Analysis
CVE-2020-6999 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
moxa2 product(s)
mds-g516e firmwaremds-g516e
Source: NVD CPE · 2 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 (2)
→
https://www.us-cert.gov/ics/advisories/icsa-20-056-04Patch · Third Party Advisory · US Government Resource
→
https://www.us-cert.gov/ics/advisories/icsa-20-056-04Patch · Third Party Advisory · US Government Resource
Quick Facts
CVE IDCVE-2020-6999
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-120
CISA KEVNo
Affected1 vendor(s)
PublishedMar 26, 2020
Related CVEs (CWE-120)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-6999 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.