Grandstream GSD3710 1.0.11.13 · Stack Buffer Overflow

Impact

For European organizations using Grandstream GSD3710 IP phones, this vulnerability poses a significant risk. Successful exploitation results in remote code execution with the privileges of the vulnerable service, potentially allowing attackers to gain full control over the device. This can lead to interception or manipulation of voice communications, unauthorized access to internal networks through the compromised device, and lateral movement within corporate environments. The compromise of VoIP infrastructure can disrupt business communications, cause data leakage, and facilitate further attacks such as espionage or ransomware deployment. Given the device’s role in telephony, availability impacts could also degrade critical communication services. The absence of authentication requirements and the remote nature of the exploit increase the attack surface, especially for organizations exposing these devices to untrusted networks or lacking proper segmentation. The exploit’s reliance on ARM architecture and specific firmware versions limits the scope but still affects all devices running vulnerable firmware. The lack of patches or mitigations increases the urgency for organizations to act proactively.