HIGH
CVE-2018-5453
CWE-130Published: March 5, 2018· Updated: Jun 17, 2026
7.5
CVSS v3.1
Official Description
An Improper Handling of Length Parameter Inconsistency issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior. An attacker may be able to edit the element of an HTTP request, causing the device to become unavailable.
Technical Analysis
CVE-2018-5453 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 availability disruption (denial of service), 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
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
moxa8 product(s)
oncell g3110-hspa firmwareoncell g3110-hspaoncell g3110-hspa-t firmwareoncell g3110-hspa-toncell g3150-hspa firmwareoncell g3150-hspaoncell g3150-hspa-t firmwareoncell g3150-hspa-t
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 (2)
→
https://ics-cert.us-cert.gov/advisories/ICSA-18-060-02Patch · Third Party Advisory · US Government Resource
→
https://ics-cert.us-cert.gov/advisories/ICSA-18-060-02Patch · Third Party Advisory · US Government Resource
Quick Facts
CVE IDCVE-2018-5453
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-130
CISA KEVNo
Affected1 vendor(s)
PublishedMar 5, 2018
Related CVEs (CWE-130)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2018-5453 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.