DLL Hijacking in AVACAST Enables Privileged Code Execution

AVACAST, a software application developed by eMPIA Technology, contains a DLL hijacking vulnerability (CWE-427) that allows authenticated local attackers to achieve arbitrary code execution with system-level privileges. An attacker with local access can place a malicious DLL in a specific directory where the application searches for dependencies. When AVACAST loads this directory during execution, it inadvertently loads the attacker's malicious DLL instead of the legitimate one, granting the attacker the same privilege level as the running process—often SYSTEM or Administrator. This vulnerability is particularly dangerous because it requires only local access and legitimate authentication, making it a viable persistence and privilege escalation vector in compromised environments.

While CVE-2026-7279 does not map to specific MITRE ATT&CK techniques in its current data, Casky's 754 security skills enable Claude AI with extended reasoning to detect the behavioral patterns associated with DLL hijacking attacks. Practitioners using Casky would identify suspicious activity through skills that analyze process execution anomalies, unauthorized DLL loading sequences, and directory permission misconfigurations. The platform's reasoning capabilities would correlate indicators such as unsigned or mismatched DLL signatures, unexpected process-to-DLL relationships, and access patterns to application directories—mapping back to Execution and Privilege Escalation phases of an attack. Security teams would see findings highlighting the specific directories AVACAST monitors, which DLLs are loaded at runtime, and whether file integrity monitoring or code signing validation could have prevented exploitation.