CVE-2025-49482 is a medium-severity vulnerability classified under CWE-404, which pertains to improper resource shutdown or release. This vulnerability affects ASR's Falcon_Linux, Kestrel, and Lapwing_Linux products, specifically impacting the ASR180x and ASR190x models within the tr069 modules. The vulnerability arises from improper handling of resources in the program files located at tr069/tr098.c, leading to resource leaks. Resource leaks occur when software fails to release system resources such as memory, file handles, or network connections after their use, potentially degrading system performance or causing denial of service over time. The CVSS 3.1 base score for this vulnerability is 5.4, indicating a medium level of severity. The vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L reveals that the vulnerability can be exploited remotely over the network (AV:N) with low attack complexity (AC:L), requires low privileges (PR:L), and no user interaction (UI:N). The impact on confidentiality is low (C:L), no impact on integrity (I:N), and low impact on availability (A:L). No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability affects versions prior to v1536 of the affected products. The tr069 protocol is commonly used for remote management of network devices, which suggests that these devices are likely network infrastructure components such as routers or gateways. Improper resource release in such devices could lead to resource exhaustion, causing degraded performance or service interruptions, which could be exploited by attackers to disrupt network operations.

For European organizations, this vulnerability poses a risk primarily to network infrastructure devices running the affected ASR products. Given that tr069 modules are used for remote management, exploitation could lead to resource leaks that degrade device performance or cause outages. This could impact availability of critical network services, potentially disrupting business operations, especially in sectors relying heavily on continuous network connectivity such as finance, telecommunications, and public services. Although the confidentiality and integrity impacts are low, the availability impact could lead to denial of service conditions if resource exhaustion occurs. This is particularly concerning for organizations with large-scale deployments of ASR devices or those in critical infrastructure sectors. The requirement for low privileges to exploit means that an attacker with limited access to the network could potentially trigger the vulnerability remotely without user interaction, increasing the risk of exploitation in internal networks. However, the absence of known exploits in the wild and the medium severity rating suggest that immediate widespread exploitation is unlikely but should not be disregarded.

Organizations should prioritize identifying and inventorying all ASR Falcon_Linux, Kestrel, and Lapwing_Linux devices, particularly ASR180x and ASR190x models, within their network infrastructure. Since no patches are currently linked, it is critical to monitor ASR vendor communications for updates or security advisories addressing this vulnerability. In the interim, network segmentation should be enforced to limit access to management interfaces using tr069 modules, restricting them to trusted administrative networks only. Implement strict access controls and network-level filtering to prevent unauthorized or low-privilege users from reaching vulnerable devices. Regularly monitor device performance metrics and logs for signs of resource exhaustion or abnormal behavior indicative of exploitation attempts. Employ intrusion detection systems (IDS) tuned to detect anomalous traffic patterns targeting tr069 services. Additionally, consider disabling or restricting tr069 management interfaces if they are not essential to operations. Establish incident response procedures to quickly address any signs of exploitation or device instability related to resource leaks.