CVE-2026-18199 in ManageEngine PAM360
Summary
by MITRE • 11/02/2026
Zohocorp ManageEngine Password Manager Pro versions before 13236 and PAM360 versions before 8601 are vulnerable to an authenticated Remote Code Execution vulnerability.
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Analysis
by VulDB Data Team • 11/02/2026
The identified security flaw resides within the Zoho Corporation suite of identity management solutions, specifically affecting ManageEngine Password Manager Pro prior to version 13236 and PAM360 prior to version 8601. This vulnerability represents a critical authenticated Remote Code Execution (RCE) condition that allows an attacker with valid credentials on the target system to execute arbitrary code with the privileges of the application process. Unlike unauthenticated exploits, this flaw requires initial access through legitimate user accounts, which often implies that the organization has already suffered some form of compromise or credential theft, such as via phishing or brute-force attacks against administrative interfaces. The presence of authentication requirements does not mitigate the severity of the issue; rather, it shifts the attack vector from external network exploitation to insider threats or post-compromise lateral movement scenarios where an attacker seeks to escalate privileges and expand their foothold within the corporate infrastructure.
From a technical perspective, this vulnerability typically stems from improper neutralization of special elements used in command-line interfaces or operating system commands within specific application endpoints. When authenticated users submit input data that is subsequently passed to underlying system calls without adequate sanitization or validation, they can inject malicious payloads into these execution contexts. This mechanism aligns closely with Common Weakness Enumeration (CWE) category CWE-78, known as Improper Neutralization of Special Elements used in an OS Command, commonly referred to as OS Command Injection. The application likely fails to properly escape or filter special characters such as semicolons, pipes, or ampersands that allow command chaining, enabling the attacker to append arbitrary operating system commands to legitimate administrative functions. This flaw may also intersect with CWE-94, Improper Control of Generation of Code, if the vulnerability involves dynamic code generation based on user-supplied input without sufficient security checks.
The operational impact of this vulnerability is severe due to its direct link to full system compromise. An authenticated attacker can leverage this RCE capability to install backdoors, exfiltrate sensitive data stored within the password vaults managed by PAM360 or Password Manager Pro, and pivot further into other network segments. Since these tools manage privileged accounts for critical infrastructure services such as Active Directory, databases, and cloud environments, gaining code execution on the server hosting them provides immediate access to a high-value target. The attacker can potentially dump credential hashes from memory or configuration files, leading to widespread account compromise across the enterprise. This scenario is frequently observed in advanced persistent threat (APT) campaigns where initial low-level access is rapidly escalated through such vulnerabilities to achieve dominance over identity management systems.
In terms of tactical classification under the MITRE ATT&CK framework, this vulnerability facilitates techniques associated with Initial Access and Execution phases. Specifically, it supports T1078 Valid Accounts, as exploitation relies on stolen or weak credentials, and T1059 Command and Scripting Interpreter for executing arbitrary commands via OS-level injection. Furthermore, if the attacker uses the compromised server to move laterally to other systems using harvested credentials, this aligns with T1021 Remote Services such as SMB/Windows Admin Shares or SSH. The ability to execute code remotely also enables persistence mechanisms like T1543 Create or Modify System Process, allowing attackers to maintain long-term access even if initial entry points are secured.
To mitigate the risks associated with this vulnerability, organizations must immediately apply vendor-provided patches to upgrade ManageEngine Password Manager Pro to version 13236 or later and PAM360 to version 8601 or later. It is imperative that these updates are applied promptly across all instances of the software within the environment. In addition to patching, security teams should enforce strict access controls on administrative interfaces, ensuring that only essential personnel have authenticated access to these management consoles. Implementing multi-factor authentication for all privileged accounts adds a critical layer of defense against credential theft. Network segmentation strategies should also be reviewed to limit lateral movement opportunities in case an attacker gains initial foothold through other means. Regular vulnerability scanning and monitoring for anomalous command execution patterns on servers hosting identity management solutions can help detect exploitation attempts early, reducing the window of exposure and potential damage from this critical flaw.