MEDIUM
CVE-2018-5449
CWE-476Published: March 5, 2018· Updated: Jun 17, 2026
6.5
CVSS v3.1
Official Description
A NULL Pointer Dereference issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior. The application does not check for a NULL value, allowing for an attacker to perform a denial of service attack.
Technical Analysis
CVE-2018-5449 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.
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 6.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
moxa8 product(s)
oncell g3150-hspa-t firmwareoncell g3150-hspa-toncell g3110-hspa-t firmwareoncell g3110-hspa-toncell g3150-hspa firmwareoncell g3150-hspaoncell g3110-hspa firmwareoncell g3110-hspa
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
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Official Patches & Advisories
All References (2)
→
https://ics-cert.us-cert.gov/advisories/ICSA-18-060-02Third Party Advisory · US Government Resource
→
https://ics-cert.us-cert.gov/advisories/ICSA-18-060-02Third Party Advisory · US Government Resource
Quick Facts
CVE IDCVE-2018-5449
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-476
CISA KEVNo
Affected1 vendor(s)
PublishedMar 5, 2018
Related CVEs (CWE-476)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2018-5449 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.