HIGH

CVE-2018-16156

CVSS v3

7.8

HIGH

EPSS Score

13.1%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

In PaperStream IP (TWAIN) 1.42.0.5685 (Service Update 7), the FJTWSVIC service running with SYSTEM privilege processes unauthenticated messages received over the FjtwMkic_Fjicube_32 named pipe. One of these message processing functions attempts to dynamically load the UninOldIS.dll library and executes an exported function named ChangeUninstallString. The default install does not contain this library and therefore if any DLL with that name exists in any directory listed in the PATH variable, it can be used to escalate to SYSTEM level privilege.

Technical details

Published
5/17/2019

Frequently asked questions

What is CVE-2018-16156?

In PaperStream IP (TWAIN) 1.42.0.5685 (Service Update 7), the FJTWSVIC service running with SYSTEM privilege processes unauthenticated messages received over the FjtwMkic_Fjicube_32 named pipe. One of these message processing functions attempts to dynamically load the UninOldIS.dll library and executes an exported function named ChangeUninstallString. The default install does not contain this library and therefore if any DLL with that name exists in any directory listed in the PATH variable, it can be used to escalate to SYSTEM level privilege.

Is CVE-2018-16156 actively exploited?

Active exploitation of CVE-2018-16156 has not been confirmed. The EPSS score is 13.1%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-16156?

CVE-2018-16156 has a CVSS v3 base score of 7.8 (HIGH severity).

Is CVE-2018-16156 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.