Is CVE-2019-16305 actively exploited?

No active exploitation of CVE-2019-16305 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-16305 be exploited remotely?

Yes. CVE-2019-16305 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-16305?

CVE-2019-16305 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2019-16305

CWE-77Published: September 14, 2019· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

In MobaXterm 11.1 and 12.1, the protocol handler is vulnerable to command injection. A crafted link can trigger a popup asking whether the user wants to run MobaXterm to handle the link. If accepted, another popup appears asking for further confirmation. If this is also accepted, command execution is achieved, as demonstrated by the MobaXterm://`calc` URI.

NVD Source

Technical Analysis

CVE-2019-16305 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

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.