CVE-2025-5099 is a critical vulnerability identified in the Mobile Dynamix PrinterShare Mobile Print application, specifically version 12.15.01. The vulnerability is classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-787 (Out-of-Bounds Write). It arises from an out-of-bounds write condition in the native library component responsible for PDF rendering. When the application processes PDF files, the native library attempts to render the content but fails to properly restrict memory operations within allocated buffer boundaries. This improper handling can lead to memory corruption, which attackers can exploit to execute arbitrary code on the affected device. The vulnerability has a CVSS v3.1 base score of 9.8, indicating a critical severity level. The vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) shows that the attack can be performed remotely over the network without any privileges or user interaction, and it impacts confidentiality, integrity, and availability to a high degree. Although no known exploits are currently observed in the wild, the nature of the vulnerability and its critical score suggest that exploitation could lead to full system compromise. The lack of available patches at the time of publication increases the urgency for mitigation and monitoring. This vulnerability is particularly concerning for environments where PrinterShare Mobile Print is used to handle PDF documents, as maliciously crafted PDFs could trigger the exploit. Given the criticality and ease of exploitation, this vulnerability represents a significant risk to affected systems.

For European organizations, the impact of CVE-2025-5099 could be severe. PrinterShare Mobile Print is commonly used in enterprise and personal environments to facilitate mobile printing, often integrating with corporate networks and sensitive data workflows. Exploitation could allow attackers to execute arbitrary code remotely, potentially leading to unauthorized access to confidential documents, disruption of printing services, and lateral movement within corporate networks. This could result in data breaches, intellectual property theft, and operational downtime. The vulnerability affects confidentiality, integrity, and availability simultaneously, making it a critical threat to business continuity and data protection compliance, including GDPR obligations. Organizations relying on mobile printing solutions in sectors such as finance, healthcare, government, and manufacturing are particularly at risk due to the sensitive nature of their data and regulatory requirements. Additionally, the absence of required privileges or user interaction for exploitation increases the likelihood of automated attacks or wormable scenarios, amplifying potential damage.

Given the absence of an official patch at the time of disclosure, European organizations should implement immediate compensating controls. These include restricting network access to devices running PrinterShare Mobile Print, especially blocking inbound connections to the application from untrusted networks. Employ network segmentation to isolate printing devices and mobile endpoints from critical infrastructure. Monitor network traffic for anomalous PDF file transfers or suspicious activity related to the PrinterShare application. Enforce strict input validation and scanning of all PDF files before processing, using advanced malware detection tools capable of identifying malformed PDFs. Organizations should also consider temporarily disabling or uninstalling PrinterShare Mobile Print on high-risk devices until a patch is available. Regularly update endpoint detection and response (EDR) solutions to detect exploitation attempts targeting memory corruption vulnerabilities. Finally, maintain close communication with Mobile Dynamix for timely patch releases and apply updates immediately upon availability.