CVE-2025-6150 in X15
Summary
by MITRE • 06/17/2025
A vulnerability classified as critical was found in TOTOLINK X15 1.0.0-B20230714.1105. Affected by this vulnerability is an unknown functionality of the file /boafrm/formMultiAP of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 06/23/2025
The vulnerability identified as CVE-2025-6150 represents a critical buffer overflow flaw within the TOTOLINK X15 router firmware version 1.0.0-B20230714.1105. This issue resides in the HTTP POST Request Handler component, specifically within the /boafrm/formMultiAP file which serves as a web interface form handler for multi-ap functionality. The vulnerability manifests when processing the submit-url argument through HTTP POST requests, creating a condition where input validation fails to properly constrain buffer boundaries. The flaw falls under CWE-121, which describes stack-based buffer overflow conditions, and represents a classic example of insufficient input validation in web application components. The attack vector is remote, meaning adversaries can exploit this vulnerability without physical access to the device, making it particularly dangerous in networked environments where routers serve as critical infrastructure components.
The operational impact of this vulnerability extends beyond simple denial of service scenarios, as buffer overflows of this nature can enable arbitrary code execution and complete system compromise. When an attacker crafts a malicious HTTP POST request containing an oversized submit-url parameter, the buffer overflow can overwrite adjacent memory locations, potentially allowing for stack corruption, instruction pointer manipulation, and privilege escalation. This vulnerability aligns with ATT&CK technique T1059.007 for command and scripting interpreter execution, as successful exploitation could enable attackers to execute arbitrary commands on the affected device. The disclosed exploit availability significantly increases the risk profile, as it removes the requirement for advanced exploitation techniques and makes this vulnerability accessible to a broader range of threat actors including those with limited technical expertise.
Mitigation strategies for CVE-2025-6150 must prioritize immediate firmware updates from TOTOLINK, as this represents the most effective defense against the known exploit. Network segmentation and firewall rules should be implemented to restrict access to the affected router's web interface, particularly blocking external access to port 80 and 443 where the vulnerable HTTP handler operates. Additional protective measures include implementing intrusion detection systems with signatures for known exploit patterns targeting this specific vulnerability, conducting regular security audits of networked devices, and establishing network monitoring protocols to detect anomalous HTTP POST traffic patterns. Organizations should also consider disabling unnecessary web management interfaces and implementing multi-factor authentication where possible to add additional layers of protection. The vulnerability demonstrates the critical importance of maintaining up-to-date firmware across all network infrastructure devices, as the buffer overflow could potentially allow attackers to establish persistent backdoors or use the compromised device as a pivot point for lateral movement within the network.