CVE-2025-5072 in Falcon_Linux
Summary
by MITRE • 07/01/2025
Resource leak vulnerability in ASR180x、ASR190x in con_mgr allows Resource Leak Exposure.This issue affects Falcon_Linux、Kestrel、Lapwing_Linux: before v1536.
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Analysis
by VulDB Data Team • 12/22/2025
The CVE-2025-5072 vulnerability represents a critical resource leak flaw within the con_mgr component of ASR180x and ASR190x network devices. This vulnerability stems from improper resource management practices that fail to correctly release allocated system resources after their intended use has concluded. The issue specifically impacts Falcon_Linux, Kestrel, and Lapwing_Linux operating systems versions prior to v1536, indicating a widespread concern across multiple network infrastructure platforms. The root cause of this vulnerability aligns with CWE-404, which categorizes improper resource cleanup as a fundamental flaw in software design that leads to resource exhaustion and system instability. Attackers exploiting this weakness can potentially consume system resources such as memory, file descriptors, or network connections without proper release mechanisms, leading to service degradation or complete system failure.
The operational impact of this resource leak vulnerability extends beyond simple performance degradation to encompass potential system compromise and availability disruption. When resources remain allocated indefinitely due to the flawed con_mgr implementation, the affected systems gradually lose capacity to handle legitimate requests and operations. This progressive resource exhaustion can manifest as increased latency, application crashes, or complete system lockups that render network services unavailable to authorized users. The vulnerability's exposure through the con_mgr component suggests that it specifically affects connection management functions, potentially allowing attackers to exhaust connection pools or memory allocations through repeated exploitation attempts. The timing of this vulnerability's impact becomes critical as systems continue to process legitimate traffic while simultaneously leaking resources, creating a gradual but steady decline in operational performance that may go unnoticed until it reaches critical thresholds.
Mitigation strategies for CVE-2025-5072 require immediate attention through software updates and system hardening measures. Organizations should prioritize upgrading all affected ASR180x and ASR190x devices to versions v1536 or later where the resource leak has been addressed through proper resource cleanup mechanisms. System administrators should implement monitoring solutions to track resource consumption patterns and identify abnormal usage that might indicate exploitation attempts. The remediation process must include comprehensive testing of updated firmware to ensure that the resource leak fix does not introduce compatibility issues with existing network configurations. Additionally, implementing connection limiting and resource quotas can serve as temporary protective measures while full patches are deployed. Security teams should also consider implementing network segmentation and access controls to limit potential exploitation vectors and reduce the attack surface available to adversaries targeting this vulnerability. This approach aligns with ATT&CK technique T1499 which focuses on resource exhaustion attacks and emphasizes the importance of proper resource management in maintaining system availability and security posture.
The vulnerability's classification as a resource leak exposure highlights the fundamental importance of proper memory management and resource lifecycle handling in embedded systems and network infrastructure. Modern security frameworks increasingly emphasize the need for robust resource management practices as part of overall system security design, since resource exhaustion attacks can effectively disable systems without requiring sophisticated exploitation techniques. Organizations must establish comprehensive vulnerability management programs that include regular assessment of resource handling practices in critical infrastructure components. The widespread impact across multiple operating systems in the Falcon_Linux, Kestrel, and Lapwing_Linux platforms underscores the systemic nature of this flaw and the need for coordinated remediation efforts across all affected deployments. Regular security audits and code reviews focusing on resource management patterns can help identify similar vulnerabilities before they can be exploited in operational environments, thereby strengthening overall cybersecurity resilience against resource-based attacks.