What’s Vulnerable › Vulnerabilities
CVE-2026-54213: TeamDavid: Denial of Service via endpoint 'internalRestart'
- Severity: critical (CVSS 9.2 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-07 · updated 2026-10-24
- Weakness: CWE-284
Description
Tobit Laboratories AG TeamDavid's Webbox application exposes a functionality that allows the server to be shut down when a specific endpoint (/internalRestart) is accessed. This endpoint is accessible to unauthenticated users over the public Internet. Instead of “restarting”, the server shuts completely down. As a result, a remote attacker can trigger a persistent denial of service by shutting down the web server without requiring authentication. Recovery requires manual administrator intervention to restart the service. 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.
Affected products
- Tobit Laboratories AG TeamDavid: before Rollout 528 — fixed in Rollout 528
How to fix
Upgrade to a fixed version: Tobit Laboratories AG TeamDavid Rollout 528. Check the vendor advisory for mitigations.
References
- https://chayns.net/77892-10814/tapp/763210?postId=11454
- https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/
- https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/
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