A vulnerability identified as critical has been detected in Ritlabs TinyWeb Server up to 1.94 on Win32. This impacts an unknown function in the library libeay32.dll.html of the component Header Handler . The manipulation of the argument Authorization leads to stack-based buffer overflow. This vulnerability is documented as CVE-2026-12200 . The attack can be initiated remotely. Additionally, an exploit exists. The vendor was contacted early about this disclosure but did not respond in any way.