CVE-2025-65014 in LibreNMS
Summary
by MITRE • 11/19/2025
LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Prior to version 25.11.0, a weak password policy vulnerability was identified in the user management functionality of the LibreNMS application. This vulnerability allows administrators to create accounts with extremely weak and predictable passwords, such as 12345678. This exposes the platform to brute-force and credential stuffing attacks. This issue has been patched in version 25.11.0.
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Analysis
by VulDB Data Team • 11/19/2025
The vulnerability identified as CVE-2025-65014 represents a critical weakness in the user management subsystem of LibreNMS, a widely deployed network monitoring solution that relies on PHP, MySQL, and SNMP technologies. This weakness manifests in the application's password policy implementation, which fails to enforce adequate complexity requirements for user account creation. The vulnerability specifically affects versions prior to 25.11.0 and directly impacts the platform's security posture by allowing unauthorized parties to create accounts with trivial passwords such as 12345678, thereby undermining the fundamental security controls that should protect administrative access to network monitoring infrastructure. The flaw falls under the category of weak authentication mechanisms that are commonly exploited in credential-based attacks.
The technical implementation of this vulnerability stems from insufficient validation and enforcement of password strength requirements within the user management interface. When administrators create new user accounts or reset passwords through the application's administrative functions, the system does not properly validate the complexity of the supplied credentials against established security policies. This weakness enables attackers to exploit the predictable nature of weak passwords to gain unauthorized access to the monitoring platform, which typically contains sensitive network information and operational data. The vulnerability creates a pathway for attackers to perform brute-force attacks against user accounts, leveraging the predictability of commonly used passwords to compromise administrative access. This weakness aligns with CWE-521 Weak Password Requirements, which specifically addresses the failure to enforce adequate password complexity policies in authentication systems. The vulnerability also corresponds to ATT&CK technique T1110.003 Credential Stuffing, as the predictable passwords can be easily tested across multiple accounts and systems.
The operational impact of this vulnerability extends beyond simple credential compromise, as it exposes the entire LibreNMS infrastructure to potential exploitation by threat actors. Network monitoring platforms like LibreNMS serve as critical components in enterprise security architectures, often containing comprehensive visibility into network traffic, device configurations, and security events. When attackers successfully exploit weak password policies, they gain access to potentially sensitive monitoring data and can manipulate network monitoring configurations to hide malicious activities. The vulnerability enables attackers to escalate privileges within the monitoring environment, potentially leading to complete compromise of the network infrastructure that the monitoring system is designed to protect. This risk is particularly concerning given that LibreNMS is frequently deployed in enterprise environments where it may serve as a primary tool for network visibility and security monitoring.
Mitigation strategies for CVE-2025-65014 must include immediate patching of affected systems to version 25.11.0 or later, which implements proper password policy enforcement. Organizations should also conduct comprehensive password audits of existing user accounts to identify and strengthen any accounts that may have been compromised through the vulnerability. The implementation of multi-factor authentication should be considered as an additional security layer to protect critical administrative accounts. Security teams should also review and enforce password complexity requirements through configuration management, ensuring that all new accounts must meet minimum strength criteria that include character variety, length requirements, and resistance to dictionary attacks. Regular vulnerability assessments should be performed to identify similar weaknesses in other network management and monitoring tools, as the exploitation of weak authentication mechanisms remains one of the most common attack vectors in enterprise security incidents. The remediation process should also include security awareness training for administrators to prevent the creation of weak passwords and to emphasize the importance of maintaining strong authentication controls across all network monitoring systems.