Ritlabs TinyWeb Server Header libeay32.dll.html stack-based overflow
Published Jun 15, 2026 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
Ritlabs TinyWeb Server Header libeay32.dll.html stack-based overflow
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
A security vulnerability 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. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- MEDIUM
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- VDB-370842 | Ritlabs TinyWeb Server Header libeay32.dll.html stack-based overflow ↗
- VDB-370842 | CTI Indicators (IOB, IOC, IOA) ↗
- CVE-2026-12200 | CVE Analysis and Report ↗
- Submit #829894 | RITLabs TinyWeb 1.94 Stack-based Buffer Overflow ↗
- nathan2.com ↗
Record history
Published Jun 15, 2026 · Last refreshed Nov 3, 2026