CVE-2025-34189: Vasion Print (formerly PrinterLogic) Insecure Inter-Process Communication Allows Local Session Hijacking

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-09-19 · updated 2026-10-18
Weakness: CWE-732

Description

Vasion Print (formerly PrinterLogic) Virtual Appliance Host versions prior to 1.0.735 and Application versions prior to 20.0.1330 (macOS/Linux client deployments) contain a vulnerability in the local inter-process communication (IPC) mechanism. The software stores IPC request and response files inside /opt/PrinterInstallerClient/tmp with world-readable and world-writable permissions. Any local user can craft malicious request files that are processed by privileged daemons, leading to unauthorized actions being executed in other user sessions. This breaks user session isolation, potentially allowing local attackers to hijack sessions, perform unintended actions in the context of other users, and impact system integrity and availability. This vulnerability has been identified by the vendor as: V-2022-004 — Client Inter-process Security.

Affected products

Vasion Virtual Appliance Application: before 20.0.1330 — fixed in 20.0.1330
Vasion Virtual Appliance Host: before 1.0.735 — fixed in 1.0.735

How to fix

Upgrade to a fixed version: Vasion Virtual Appliance Application 20.0.1330; Vasion Virtual Appliance Host 1.0.735. Check the vendor advisory for mitigations.

References

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