Vulnerability in Fujitsu Paperstream Ip \(Twain\)

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.026 (84.5th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2018-16156: held from 0.026 to 0.026.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-16156?
CVE-2018-16156 is a high-severity vulnerability in Fujitsu Paperstream Ip \(Twain\), classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2019-05-17.
How severe is CVE-2018-16156?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2018-16156 known to be exploited?
5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.