CVE-2026-6645
HighCVSS 7.3Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
An insecure process execution vulnerability exists in the PaperCut Print Deploy Client for Windows. The application, which operates with high-level system privileges, improperly performs an internal validation check by invoking a secondary system utility without specifying a path.
Risk Assessment
A local attacker with the ability to modify directories in the system's search path could plant a malicious binary, leading to the execution of malicious code with SYSTEM privileges, resulting in full compromise of the affected host.
Recommendation
It is recommended that the application specifies an absolute path to the invoked utility to minimize the risk of unauthorized access to the system.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS