Tobit Laboratories TeamDavid up to Rollout 524 serverClient_close.html buffer overflow

Summaryinfo

A vulnerability identified as very critical has been detected in Tobit Laboratories TeamDavid up to Rollout 524. Affected by this vulnerability is an unknown functionality of the file serverClient_close.html. The manipulation leads to buffer overflow. This vulnerability is traded as CVE-2026-54211. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Tobit Laboratories TeamDavid up to Rollout 524 and classified as very critical. This issue affects some unknown functionality of the file serverClient_close.html. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at david.tobit.software. The identification of this vulnerability is CVE-2026-54211 since 06/12/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/07/2026).

By approaching the search of inurl:serverClient_close.html it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Tobit Laboratories

Name

• TeamDavid

Version

• Rollout 524

CPE 2.3info

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CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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