CVE-2025-44888 is a critical stack overflow vulnerability identified in the firmware version FW-WGS-804HPT v1.305b241111. The vulnerability exists in the web_stp_globalSetting_post function, specifically via the stp_conf_name parameter. A stack overflow occurs when more data is written to a buffer located on the stack than what it can hold, potentially overwriting adjacent memory. This can lead to arbitrary code execution, denial of service, or system compromise. The vulnerability is remotely exploitable without authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:N). The CVSS score of 9.8 reflects the high impact on confidentiality, integrity, and availability, meaning an attacker can fully compromise the affected device. The CWE-121 classification confirms this is a classic stack-based buffer overflow. No patches or vendor information are currently available, and no known exploits are reported in the wild yet. Given the nature of the vulnerability, attackers could craft malicious HTTP POST requests targeting the stp_conf_name parameter to trigger the overflow and execute arbitrary code on the device, potentially gaining full control over it. This could allow attackers to pivot into internal networks, intercept or manipulate traffic, or disrupt network services.

For European organizations, the impact of this vulnerability could be severe, especially for those relying on the affected device or similar network infrastructure components. Compromise of such devices can lead to network outages, data breaches, or unauthorized access to sensitive internal systems. Critical infrastructure sectors such as finance, healthcare, telecommunications, and government agencies could be targeted due to the high severity of the vulnerability. The ability to exploit this remotely without authentication increases the risk of widespread attacks, including automated scanning and exploitation campaigns. Additionally, the lack of available patches or vendor guidance increases exposure time, potentially allowing threat actors to develop and deploy exploits. The disruption or compromise of network devices can also have cascading effects on business continuity and regulatory compliance, particularly under GDPR and other European data protection laws.

Given the absence of official patches, European organizations should immediately implement network-level mitigations. These include isolating the affected devices from untrusted networks, restricting management interfaces to trusted IP addresses, and deploying web application firewalls (WAFs) or intrusion prevention systems (IPS) with custom rules to detect and block suspicious POST requests targeting the stp_conf_name parameter. Network segmentation should be enforced to limit lateral movement if a device is compromised. Organizations should conduct thorough asset inventories to identify any devices running the vulnerable firmware version and prioritize their remediation or replacement. Monitoring network traffic for anomalies and unusual HTTP POST requests can help detect exploitation attempts. Once vendor patches become available, prompt testing and deployment are critical. Additionally, organizations should review and harden device configurations to minimize attack surfaces and consider implementing endpoint detection and response (EDR) solutions to detect post-exploitation activities.