CVE-2025-4596 in AMDX
Summary
by MITRE • 01/08/2026
Asseco ADMX system is used for processing medical records. It allows logged in users to access medical files belonging to other users through manipulation of GET arguments containing document IDs. This issue has been fixed in 6.09.01.62 version of ADMX.
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Analysis
by VulDB Data Team • 01/08/2026
The vulnerability identified as CVE-2025-4596 affects the Asseco ADMX system, a medical records processing platform that handles sensitive patient information. This system serves healthcare organizations by managing electronic medical records and related documentation. The flaw represents a critical access control weakness that undermines the fundamental security principles of data isolation and user authentication within the medical records environment. The vulnerability specifically manifests in the system's handling of GET parameters during document retrieval operations, creating an unauthorized access pathway that allows authenticated users to bypass normal access controls and view medical records belonging to other patients.
The technical implementation of this vulnerability stems from insufficient input validation and improper access control mechanisms within the ADMX system's document retrieval functionality. When users request medical documents through the web interface, the system processes document identifiers passed via GET arguments in the URL. The flaw occurs because the application fails to properly verify whether the authenticated user has legitimate authorization to access the requested document ID. This weakness creates a classic privilege escalation scenario where a logged-in user can manipulate URL parameters to access unauthorized medical records, effectively bypassing the system's intended access controls. The vulnerability aligns with CWE-285, which addresses improper authorization issues, and represents a failure in implementing proper access control checks at the application level.
The operational impact of this vulnerability extends beyond simple data exposure, creating significant risks for healthcare data privacy and regulatory compliance. Medical records contain highly sensitive personal health information that is protected under various regulations including HIPAA, GDPR, and similar data protection laws. An attacker exploiting this vulnerability could access multiple patient records simultaneously, potentially leading to identity theft, insurance fraud, or other malicious activities. The implications are particularly severe in healthcare environments where patient confidentiality is paramount, and unauthorized access to medical records can result in serious legal consequences for the healthcare organization. The vulnerability essentially creates a data breach scenario where unauthorized access occurs through legitimate system usage patterns, making detection more challenging.
The fix implemented in version 6.09.01.62 of the ADMX system addresses this vulnerability through enhanced access control validation mechanisms. The remediation likely involves implementing proper input sanitization of GET parameters, strengthening session management protocols, and ensuring that all document access requests undergo rigorous authorization checks before any data is returned to the user. Organizations should prioritize immediate deployment of this security update to protect their medical records systems from exploitation. Additionally, security teams should conduct comprehensive audits of their medical records systems to identify similar access control weaknesses that might exist in other components or legacy systems. The vulnerability demonstrates the critical importance of implementing defense-in-depth strategies for healthcare information systems, where multiple layers of security controls work together to protect sensitive patient data. This incident underscores the need for regular security assessments and vulnerability management processes specifically tailored for healthcare environments where data protection is non-negotiable.