7.3
HIGH CVSS 4.0
CVE-2026-6645
Insecure Search Path Vulnerability in PaperCut Print Deploy Client for Windows
Description

An insecure process execution vulnerability exists in the pc-printer-updater.exe component of the PaperCut Print Deploy Client for Windows. The application, which typically operates with high-level system privileges, attempts to perform an internal validation check by invoking a secondary system utility using an unqualified file reference. Because the application does not specify an absolute path to this utility, it relies on the operating system's default search order to locate the executable. Under specific conditions, a local attacker with the ability to modify directories within the system's search path could plant a malicious binary that mimics the expected utility. This could result in the malicious code being executed with SYSTEM privileges, leading to a full compromise of the affected host.

INFO

Published Date :

June 22, 2026, 3:24 a.m.

Last Modified :

June 22, 2026, 3:24 a.m.

Remotely Exploit :

No

Source :

PaperCut
Affected Products

The following products are affected by CVE-2026-6645 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 HIGH eb41dac7-0af8-4f84-9f6d-0272772514f4
Solution
Update the PaperCut Print Deploy Client to address insecure process execution.
  • Update the PaperCut Print Deploy Client to the latest version.
  • Ensure system utilities are invoked with absolute paths.
  • Restrict modification of system directories.
  • Scan for malicious binaries in search paths.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-6645 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.