Is CVE-2017-15359 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2017-15359, but active exploitation has not been confirmed.

Can CVE-2017-15359 be exploited remotely?

Yes. CVE-2017-15359 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-15359?

CVE-2017-15359 has a CVSS score of 6.5 (MEDIUM).

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MEDIUMPOC

CVE-2017-15359

CWE-22Published: October 18, 2017· Updated: Jun 17, 2026

6.5

CVSS v3.1

Official Description

In the 3CX Phone System 15.5.3554.1, the Management Console typically listens to port 5001 and is prone to a directory traversal attack: "/api/RecordingList/DownloadRecord?file=" and "/api/SupportInfo?file=" are the vulnerable parameters. An attacker must be authenticated to exploit this issue to access sensitive information to aid in subsequent attacks.

NVD Source

Technical Analysis

CVE-2017-15359 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 complete confidentiality breach (data exposure), with a CVSS base score of 6.5.

A proof-of-concept (PoC) exploit exists for CVE-2017-15359. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.