CVE-2026-67248 in ADM
Summary
by MITRE • 07/30/2026
A stack-based buffer overflow vulnerability was found in the File Explorer on the ADM. The vulnerability occurs because user-controlled input is not properly validated before being decoded and copied into a fixed-size stack buffer. An authenticated attacker can exploit this issue to cause denial of service of the affected CGI process. Further impact may be possible depending on exploitability and runtime protections. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.RUN1 as well as from ADM 5.0.0 through ADM 5.1.3.RI81.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 07/30/2026
This vulnerability represents a critical stack-based buffer overflow flaw in the File Explorer component of the ADM system architecture, which operates under the purview of cybersecurity frameworks such as CWE-121. The technical implementation suffers from inadequate input validation mechanisms that fail to sanitize user-provided data before processing within fixed-size stack buffers. When user-controlled inputs are decoded and subsequently copied into these predetermined memory spaces without proper bounds checking, the system becomes susceptible to memory corruption exploits that can overwrite adjacent stack memory locations including return addresses and control flow information.
The operational impact of this vulnerability extends beyond simple denial of service conditions, as it creates potential pathways for more sophisticated attacks depending on the specific runtime environment protections present. An authenticated attacker positioned within the system can leverage this weakness to manipulate the affected CGI process, potentially leading to complete system compromise or unauthorized access to sensitive data repositories. The vulnerability affects a broad range of ADM versions spanning from 4.1.0 through 4.3.3.RUN1 and continuing through 5.0.0 through 5.1.3.RI81, indicating this represents a persistent flaw across multiple release cycles that requires immediate remediation efforts.
From an ATT&CK framework perspective, this vulnerability maps to multiple techniques including T1203 (Exploitation for Client Execution) and T1499 (Endpoint Denial of Service) while potentially enabling later stages such as T1059 (Command and Scripting Interpreter) if exploitation leads to code execution. The authentication requirement suggests this operates under privilege escalation considerations, though the initial access point remains within the authenticated user context rather than a full network compromise scenario. Organizations should consider implementing immediate mitigations including input validation patches, stack canaries, address space layout randomization, and runtime protections to reduce exploitability while planning comprehensive version upgrades addressing the root cause implementation flaws.
The vulnerability characteristics align with common exploitation patterns found in web application security contexts where CGI processes handle user inputs without sufficient sanitization measures. The fixed-size buffer constraints create predictable memory layouts that attackers can leverage through carefully crafted input sequences designed to overwrite specific memory locations. Given the persistent nature of this vulnerability across multiple versions, organizations should prioritize immediate patch deployment and consider network segmentation strategies to limit potential exploitation vectors while monitoring for signs of attempted exploitation in their system logs and security information event management systems.