CVE-2026-54211
CriticalCVSS 9.5Summary
The //serverClient_close.html endpoint in the TeamDavid Webbox application is vulnerable to a buffer overflow in multiple form data parameters. Submitting excessively long values in these parameters by an authenticated attacker can trigger a server crash, resulting in denial of service. Depending on stack state or if a stack canary can be disclosed, this buffer overflow could potentially be exploited for remote code execution, leading to full compromise of the server.
Risk Assessment
The risk includes the possibility of crashing the server by an authenticated user, and in extreme cases, remote code execution and full server compromise, potentially leading to data security breaches.
Recommendation
It is recommended to apply vendor patches and validate input length in forms. Also, restrict user privileges and implement buffer overflow protections.
Original NVD description (English source)
Tobit Laboratories AG TeamDavid's Webbox application’s endpoint “//serverClient_close.html” is vulnerable to a buffer overflow vulnerability in multiple form data parameters. By submitting excessively long values in these parameters, an authenticated attacker can trigger a server 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 be exploited for remote code execution, leading to full compromise of the server. This issue affects TeamDavid through Rollout 524.