CVE-2026-54212 Details
Description
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 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.
A buffer overflow vulnerability has been identified in the Webbox application by Tobit Laboratories AG, specifically within an API endpoint. This vulnerability allows an unauthenticated attacker to cause a denial-of-service condition by sending a specially crafted JSON body that is at least 8 characters long and begins with a number. The server crashes as a result, although this buffer overflow could potentially be exploited for remote code execution under certain conditions. This issue affects TeamDavid through Rollout 524.
Users are advised to update to the latest version of TeamDavid, as the vulnerabilities appear to have been fixed in this release. For those unable to update, consider placing the application behind a VPN or reverse proxy that filters requests and blocks access to non-essential endpoints.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Aug 7, 2026CISA-ADP
Assessed Aug 7, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://chayns.net/77892-10814/tapp/763210?postId=11454 | [email protected] | |
| https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/ | [email protected] | BundleRemedyTechnical Analysis |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Tobit Laboratories AG TeamDavid | <= 524 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 7, 2026 | CVE Modified | [email protected] |
| Aug 7, 2026 | CVE Modified | CISA-ADP |
| Aug 7, 2026 | New CVE Received | [email protected] |