HIGH
CVE-2018-0639
CWE-78Published: January 9, 2019· Updated: Jun 17, 2026
7.2
CVSS v3.1
Official Description
Aterm HC100RC Ver1.0.1 and earlier allows attacker with administrator rights to execute arbitrary OS commands via tools_firmware.cgi date parameter, time parameter, and offset parameter.
Technical Analysis
CVE-2018-0639 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected Vendors & Products
nec2 product(s)
aterm hc100rc firmwareaterm hc100rc
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 (4)
→
https://jpn.nec.com/security-info/secinfo/nv18-011.htmlVendor Advisory
→
https://jvn.jp/en/jp/JVN84825660/index.htmlThird Party Advisory
→
https://jpn.nec.com/security-info/secinfo/nv18-011.htmlVendor Advisory
→
https://jvn.jp/en/jp/JVN84825660/index.htmlThird Party Advisory
Quick Facts
CVE IDCVE-2018-0639
CVSS Score7.2 / 10
SeverityHIGH
WeaknessCWE-78
CISA KEVNo
Affected1 vendor(s)
PublishedJan 9, 2019
Related CVEs (CWE-78)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2018-0639 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.