CVE-2025-27644: Vasion Print Privilege Escalation Flaw

CVE-2025-27644 Overview

CVE-2025-27644 is a local privilege escalation vulnerability in Vasion Print (formerly PrinterLogic) tracked internally as V-2024-007. The flaw affects Virtual Appliance Host versions prior to 22.0.933 and Application versions prior to 20.0.2368. An authenticated local attacker can escalate privileges on affected appliances, compromising confidentiality, integrity, and availability of the print management platform. The issue is categorized under CWE-269: Improper Privilege Management.

Critical Impact
A low-privileged local user on a vulnerable Vasion Print appliance can escalate to a higher privilege context, gaining full control of the print management stack and any credentials or print jobs it processes.

Affected Products

Vasion Print (PrinterLogic) Virtual Appliance Host before 22.0.933
Vasion Print (PrinterLogic) Application before 20.0.2368
PrinterLogic Virtual Appliance deployments running pre-patch releases

Discovery Timeline

2025-03-05 - CVE-2025-27644 published to the National Vulnerability Database
2025-04-08 - Technical details published in Pierre Kim's disclosure of 83 PrinterLogic vulnerabilities
2026-06-17 - Last updated in the NVD database

Technical Details for CVE-2025-27644

Vulnerability Analysis

The vulnerability resides in the Vasion Print Virtual Appliance, which bundles the print management application, supporting services, and a web administration interface. Improper privilege management within the appliance allows a local actor with limited access to perform operations reserved for a higher-privileged account.

Exploitation requires local access and low privileges. No user interaction is needed, and the attack complexity is low. Successful exploitation yields high impact across confidentiality, integrity, and availability, aligning with elevation to a privileged system context on the appliance.

The advisory is one of 83 issues reported by security researcher Pierre Kim against the Vasion Print product family. Refer to the Pierre Kim disclosure blog and the Full Disclosure post for the broader research context.

Root Cause

The root cause is improper privilege management [CWE-269] in the Vasion Print Virtual Appliance. Components run or expose functionality without adequately enforcing the privilege boundary between service accounts, appliance operators, and the underlying operating system. This gap lets a local, low-privileged principal invoke functionality that should require administrative privileges.

Attack Vector

The attack vector is local. An adversary must already have a foothold on the appliance, such as shell access as a low-privileged service account, an operator account on the appliance console, or code execution obtained by chaining another vulnerability from the same advisory set. From that position the attacker abuses the improperly restricted functionality to gain elevated privileges on the host.

No public proof-of-concept exploit is currently referenced by NVD, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. Vasion has not published exploitation-in-the-wild reporting for this identifier.

Detection Methods for CVE-2025-27644

Indicators of Compromise

Unexpected privileged processes spawned by the Vasion Print application or its service accounts on the Virtual Appliance.
New or modified administrative users on the appliance console outside of change windows.
Shell activity, sudo escalations, or setuid binary execution originating from low-privileged Vasion service accounts.
Appliance versions still reporting Virtual Appliance Host below 22.0.933 or Application below 20.0.2368.

Detection Strategies

Baseline the process tree of the Vasion Print appliance in a known-good state and alert on deviations, especially privilege transitions from service to root or administrator.
Ingest appliance audit logs, syslog, and web console logs into a SIEM and correlate authentication events with subsequent configuration or privilege changes.
Track Vasion Print version strings from vulnerability scanners and configuration management to flag hosts running pre-patch builds.

Monitoring Recommendations

Monitor local logon and privilege escalation events (sudo, su, service restarts) on the Virtual Appliance host.
Alert on modifications to Vasion configuration files, systemd units, cron entries, and PHP or web application directories.
Review outbound network activity from the appliance to catch data exfiltration or command-and-control that may follow successful privilege escalation.

How to Mitigate CVE-2025-27644

Immediate Actions Required

Upgrade the Vasion Print Virtual Appliance Host to 22.0.933 or later and the Application to 20.0.2368 or later.
Inventory all PrinterLogic and Vasion Print deployments, including test and lab instances, and prioritize internet-adjacent or multi-tenant appliances.
Restrict local and administrative access to the appliance to a minimal set of named accounts and rotate credentials for any account that had access before patching.
Review appliance logs for signs of prior exploitation before returning patched systems to production.

Patch Information

Vasion has published fixed builds and remediation guidance in the PrinterLogic Security Bulletins. Apply the vendor-supplied Virtual Appliance Host update to 22.0.933 and the Application update to 20.0.2368 as the authoritative fix for CVE-2025-27644. SaaS-hosted tenants should confirm with Vasion that their environment has been updated.

Workarounds

Isolate the Vasion Print appliance on a dedicated management VLAN and block interactive shell access from user networks until patching is complete.
Enforce multi-factor authentication and least privilege for all appliance operator and administrator accounts.
Disable or remove unused local accounts and integrations on the appliance to reduce the attack surface available for local escalation.

bash

# Configuration example: verify installed Vasion Print versions before and after patching
# Run on the Virtual Appliance host
cat /etc/printerlogic/version 2>/dev/null || \
  grep -Ri "version" /opt/printerlogic/ 2>/dev/null | head -n 20

# Confirm patched builds are present
# Expected: Virtual Appliance Host >= 22.0.933, Application >= 20.0.2368