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

No history.

Information

Published : 2026-08-07 10:16

Updated : 2026-09-07 13:20

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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