CVE-2026-44108 in CHARX SEC-3000
Summary
by MITRE • 07/30/2026
Due to a flaw in the execution order of scripts during shutdown, the firewall is terminated prematurely during system shutdown. This creates a temporary window in which internal services may become externally accessible, potentially allowing an unauthenticated remote attacker to connect to these services, resulting in full system compromise.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 07/30/2026
This vulnerability represents a critical race condition in system shutdown procedures that fundamentally compromises network security boundaries. The flaw occurs when scripts responsible for terminating firewall services execute before other critical network services have fully shut down, creating a temporal gap where system defenses are weakened. This premature termination allows malicious actors to exploit the window between service shutdown and firewall deactivation, potentially gaining unauthorized access to internal services that should remain protected within the network perimeter.
The technical implementation of this vulnerability stems from improper dependency management in shutdown sequences, where the execution order lacks proper synchronization mechanisms between network security components. According to CWE-367, this represents a time-of-check to time-of-use vulnerability pattern where the system's security posture changes unexpectedly during the shutdown process. The flaw violates fundamental security principles by creating an unintended attack surface that persists for a brief but critical period during system transitions.
From an operational perspective, this vulnerability creates significant risk exposure as attackers can leverage the temporary window to establish persistent access to internal services without requiring authentication credentials. The impact extends beyond simple service availability concerns to encompass complete system compromise potential, as unauthorized access to internal services often provides attackers with elevated privileges and lateral movement capabilities. This vulnerability directly maps to attack techniques described in the MITRE ATT&CK framework under T1072 for Application Deployment Software and T1046 for Network Service Scanning, where attackers can exploit such temporal gaps to discover and target vulnerable services.
The mitigation strategy requires implementing proper shutdown sequence dependencies that ensure all network services are fully terminated before firewall deactivation begins. System administrators should configure service dependencies to enforce sequential shutdown ordering, ensuring that firewall termination occurs only after all dependent services have completed their shutdown processes. Additionally, implementing immediate firewall blocking upon system shutdown initiation can prevent exploitation of the temporal window. Regular security assessments should verify proper execution order through automated testing of shutdown procedures and monitoring for unauthorized network access during system transitions.
Organizations must also consider implementing additional protective measures such as network segmentation that reduces the impact of potential compromise even if the vulnerability is exploited, and establishing robust logging mechanisms to detect unusual network access patterns during system shutdown events. The vulnerability underscores the importance of thorough security testing during system lifecycle phases, particularly around critical operations like shutdown procedures where traditional security controls may not adequately protect against temporal attack vectors.