CVE-2026-54210 TeamDavid: Buffer Overflow in file names of file upload functionalities
Unauthenticated attackers can cause server crashes or potentially execute code via buffer overflow in file upload filenames.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-54210?
CVE-2026-54210 is a critical memory corruption vulnerability in Tobit Laboratories AG TeamDavid, published on 7 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Tobit Laboratories AG TeamDavid's Webbox application implements various file upload functionalities that are vulnerable to a buffer overflow condition. By specifying an excessively long filename in a file upload request, an unauthenticated attacker can trigger a crash of the server, resulting in a 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.
Weakness: CWE-787
Which versions are affected by CVE-2026-54210?
How do I fix CVE-2026-54210?
No fix has been published for CVE-2026-54210 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-54210 being exploited?
There is no known exploitation of CVE-2026-54210 in the wild and no public exploit code.
Sources
Also known as GHSA-rghw-4g53-4wwv.