CVE-2026-54211

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 before Rollout 528. Starting with Rollout 528 (June 30, 2026), the affected functionality is disabled by default and the vulnerabilities are therefore no longer exposed through this functionality.

CVSS

No CVSS.

References

Link	Resource
https://chayns.net/77892-10814/tapp/763210?postId=11454
https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/

Configurations

No configuration.

History

23 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) El endpoint ’//serverClient_close.html’ de la aplicación Webbox de TeamDavid de Tobit Laboratories AG es vulnerable a una vulnerabilidad de desbordamiento de búfer en múltiples parámetros de datos de formulario. Al enviar valores excesivamente largos en estos parámetros, un atacante autenticado puede provocar una caída del servidor, lo que resulta en denegación de servicio. Dependiendo del estado de la pila o si un ’stack canary’ puede ser revelado a través de otra vulnerabilidad, este desbordamiento de búfer podría ser potencialmente explotado para ejecución remota de código, lo que llevaría a un compromiso total del servidor. Este problema afecta a TeamDavid hasta el Rollout 524.

Information

Published : 2026-08-07 10:16

Updated : 2026-10-24 16:10

NVD link : CVE-2026-54211

Mitre link : CVE-2026-54211

CVE.ORG link : CVE-2026-54211

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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