A stack-based buffer overflow vulnerability was found in the File Explorer on the ADM
Description
A stack-based buffer overflow vulnerability was found in the File Explorer on the ADM
AI Analyst Comment
Remediation
Apply vendor security updates immediately. Monitor for exploitation attempts and review access logs.
---METADATA---
VENDOR: ASUSTOR
PRODUCT: ADM
AFFECTED_VERSIONS: ASUSTOR Inc. ADM: 5.0.0 through 5.1.3.RI81, 4.1.0 through 4.3.3.RUN1
CONFIDENCE: high
MISSING: none
---END_METADATA---
Description Summary:
A stack-based buffer overflow vulnerability in the ASUSTOR ADM File Explorer allows authenticated attackers to potentially execute arbitrary code.
Executive Summary:
A high-severity stack-based buffer overflow vulnerability in ASUSTOR ADM File Explorer poses a significant risk of arbitrary code execution for authenticated users.
Vulnerability Details
CVE-ID: CVE-2026-67248
Affected Software: ASUSTOR ADM
Affected Versions: ASUSTOR Inc. ADM: 5.0.0 through 5.1.3.RI81, 4.1.0 through 4.3.3.RUN1
Vulnerability: This is a stack-based buffer overflow (CWE-121) occurring within the File Explorer component of the ADM operating system. The vulnerability is exploitable by a user with low-level privileges (PR:L) over the network (AV:N), potentially leading to a full system compromise.
Business Impact
Successful exploitation allows an attacker to gain unauthorized control over the affected NAS device. Given the CVSS score of 8.7, this flaw presents a severe risk of data loss, unauthorized access to sensitive files, and potential disruption of critical backup or storage services, leading to significant operational impact.
Remediation Plan
Immediate Action: Update your ASUSTOR ADM firmware to the latest version provided by the vendor at their official security advisory portal.
Proactive Monitoring: Review system access logs for unusual activity within the File Explorer interface or unexpected process crashes associated with file management tasks.
Compensating Controls: Restrict access to the ADM web interface to trusted management networks and implement strict user access controls to minimize the number of accounts with elevated or file-management privileges.
Exploitation Status
Public Exploit Available: Unknown.
Analyst Notes: As of July 30, 2026, there is no public information indicating active exploitation or a public proof-of-concept for this vulnerability. The vulnerability is inherently dangerous due to the nature of stack-based buffer overflows, which are common vectors for remote code execution.
Analyst Recommendation
The severity of this vulnerability necessitates immediate attention. Administrators should prioritize patching all affected ASUSTOR devices to prevent potential exploitation. If patching is not immediately feasible, ensure the management interface is not exposed to the public internet.