CVE-2026-54212
CriticalCVSS 9.5Summary
An API endpoint in the TeamDavid Webbox application is vulnerable to a buffer overflow. Submitting a specially crafted JSON body (at least 8 characters long and starting with a number) by an unauthenticated attacker can cause the server to crash, resulting in denial of service. Depending on stack state or if a stack canary can be disclosed, this buffer overflow could potentially lead to remote code execution and full compromise of the server.
Risk Assessment
The risk includes the possibility of remotely crashing the server without authentication, and under favorable conditions, remote code execution and full server compromise, potentially leading to data confidentiality and integrity breaches.
Recommendation
It is recommended to apply vendor patches immediately and restrict API access to trusted networks only. Also, implement buffer overflow protections such as stack canaries and ASLR.
Original NVD description (English source)
Tobit Laboratories AG TeamDavid's Webbox application implements an API endpoint that is vulnerable to a buffer overflow condition. By submitting a specially crafted JSON body, such as one that is at least 8 characters long and begins with a number, an unauthenticated attacker can cause the server to crash, resulting in denial of service. Depending on the stack state or if a stack canary can be disclosed through another vulnerability, this buffer overflow could potentially lead to remote code execution and full compromise of the server. This issue affects TeamDavid through Rollout 524.