CVE-2019-25612 in AdminExpress
Summary
by MITRE • 03/22/2026
Admin Express 1.2.5.485 contains a local structured exception handling buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an alphanumeric encoded payload in the Folder Path field. Attackers can trigger the vulnerability through the System Compare feature by pasting a crafted buffer overflow payload into the left-hand side Folder Path field and clicking the scale icon to execute shellcode with application privileges.
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Analysis
by VulDB Data Team • 03/22/2026
The vulnerability identified as CVE-2019-25612 represents a critical local buffer overflow flaw within Admin Express version 1.2.5.485 that exposes systems to arbitrary code execution risks. This vulnerability specifically targets the structured exception handling mechanism within the application, creating a pathway for local attackers to escalate privileges and gain unauthorized control over affected systems. The flaw manifests when the application processes user-supplied input through the Folder Path field, particularly within the System Compare feature where the vulnerability can be triggered through seemingly benign user interactions.
The technical implementation of this vulnerability stems from inadequate input validation and memory management within the application's handling of file paths. When attackers supply an alphanumeric encoded payload through the Folder Path field, the application fails to properly validate the input length and encoding, leading to a buffer overflow condition in the structured exception handling code. This overflow occurs because the application allocates a fixed-size buffer to store the folder path data without sufficient bounds checking, allowing the malicious payload to overwrite adjacent memory locations. The vulnerability is particularly concerning as it operates at the application level, meaning that successful exploitation requires only local access to the system, eliminating the need for network-based attack vectors.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with application-level privileges that can be leveraged for further system compromise. Once executed, the shellcode can perform various malicious activities including privilege escalation, data exfiltration, or establishing persistent access mechanisms within the compromised system. The attack vector is relatively straightforward for local adversaries to exploit, requiring only the ability to interact with the application's user interface and input fields. The vulnerability affects systems where Admin Express is installed and running, potentially exposing sensitive enterprise environments to insider threats or compromised local accounts.
Mitigation strategies for CVE-2019-25612 should focus on immediate patching and application hardening measures. Organizations must prioritize updating to the latest version of Admin Express that addresses this buffer overflow vulnerability, as provided by the vendor. Additionally, implementing input validation controls and address space layout randomization can help reduce the exploitability of similar vulnerabilities. The vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions, and may also relate to CWE-125, representing out-of-bounds read scenarios. From an attack framework perspective, this vulnerability maps to the privilege escalation and code execution tactics described in the MITRE ATT&CK framework, specifically targeting the execution and privilege escalation phases where adversaries seek to gain higher-level system access. System administrators should also consider implementing monitoring solutions to detect unusual application behavior patterns that might indicate exploitation attempts.