CVE-2025-44884 is a critical security vulnerability identified in the firmware version FW-WGS-804HPT v1.305b241111. The vulnerability is a stack-based buffer overflow occurring in the web_sys_infoContact_post function. This type of vulnerability (CWE-121) arises when a program writes more data to a buffer located on the stack than it can hold, potentially overwriting adjacent memory. Exploiting this flaw can allow an unauthenticated remote attacker to execute arbitrary code with the privileges of the affected system, leading to full compromise. The CVSS 3.1 base score of 9.8 reflects the high severity, with attack vector being network (AV:N), no privileges required (PR:N), no user interaction needed (UI:N), and impacts on confidentiality, integrity, and availability all rated high (C:H/I:H/A:H). The vulnerability is exploitable remotely without authentication, making it highly dangerous. Although no known exploits are currently reported in the wild, the lack of available patches or mitigations increases the risk. The affected product is not explicitly named beyond the firmware version, but the identifier FW-WGS-804HPT suggests a network device, likely a router or gateway, which typically exposes web management interfaces. The vulnerable function web_sys_infoContact_post indicates the flaw exists in the web server component handling HTTP POST requests, a common attack surface. Successful exploitation could lead to remote code execution, complete device takeover, network disruption, and potential pivoting to internal networks.

For European organizations, this vulnerability poses a significant threat, especially for enterprises and service providers relying on the affected device or similar network infrastructure. Compromise of such a device could lead to interception or manipulation of sensitive communications, disruption of network services, and unauthorized access to internal systems. Critical infrastructure operators, financial institutions, and large enterprises with complex network environments are at heightened risk. Given the remote, unauthenticated exploit vector, attackers could leverage this vulnerability to establish persistent footholds or launch further attacks such as lateral movement or data exfiltration. The potential for full system compromise threatens confidentiality, integrity, and availability of organizational assets, potentially causing operational downtime, financial loss, and reputational damage. Additionally, the lack of patches and known exploits in the wild means organizations must proactively identify and mitigate exposure before exploitation occurs.

Organizations should immediately identify any devices running FW-WGS-804HPT v1.305b241111 firmware or similar versions. Since no patches are currently available, mitigation should focus on network-level controls: restrict access to the device’s web management interface by implementing strict firewall rules limiting access to trusted IP addresses only; disable remote management over the internet if not required; employ network segmentation to isolate vulnerable devices from critical systems; monitor network traffic for unusual POST requests targeting the web_sys_infoContact_post function or the device’s management interface; implement intrusion detection/prevention systems (IDS/IPS) with signatures tuned for buffer overflow attempts; and maintain rigorous logging and alerting to detect exploitation attempts. Organizations should engage with the device vendor for firmware updates or security advisories and plan for rapid deployment of patches once available. Additionally, consider replacing unsupported or unpatched devices to reduce exposure.