Is CVE-2017-16251 actively exploited?

No active exploitation of CVE-2017-16251 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-16251 be exploited remotely?

Yes. CVE-2017-16251 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-16251?

CVE-2017-16251 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2017-16251

CWE-434Published: March 13, 2018· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

A vulnerability in the conferencing component of Mitel ST 14.2, release GA28 and earlier, could allow an authenticated user to upload a malicious script to the Personal Library by a crafted POST request. Successful exploit could allow an attacker to execute arbitrary code within the context of the application.

NVD Source

Technical Analysis

CVE-2017-16251 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), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.