CVSS v3
8.8
HIGH
EPSS Score
6.7 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2019-09-14
Frequently asked questions
What is CVE-2019-16305?
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.
Is CVE-2019-16305 actively exploited?
Active exploitation of CVE-2019-16305 has not been confirmed. Its EPSS score was 6.7% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-16305?
CVE-2019-16305 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2019-16305 affecting your environment?
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