Is CVE-2018-0640 actively exploited?

No active exploitation of CVE-2018-0640 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-0640 be exploited remotely?

Yes. CVE-2018-0640 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-0640?

CVE-2018-0640 has a CVSS score of 7.2 (HIGH).

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HIGH

CVE-2018-0640

CWE-119Published: January 9, 2019· Updated: Jun 17, 2026

7.2

CVSS v3.1

Official Description

Buffer overflow in Aterm HC100RC Ver1.0.1 and earlier allows attacker with administrator rights to execute arbitrary code via netWizard.cgi date parameter, time parameter, and offset parameter.

NVD Source

Technical Analysis

CVE-2018-0640 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.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.