High 7.3Published Jun 14, 2026

CVE-2026-12200Ritlabs TinyWeb Server Header libeay32.dll.html stack-based overflow

Updated under an hour ago (Oct 27, 2026, 10:10 PM ET)

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Every CVE for Ritlabs TinyWeb Server

Exploited in the last 30 days

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.

CVSS: 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
Weakness (CWE): CWE-121, CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Jun 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Ritlabs TinyWeb Server ritlabs:tinyweb_server	1.0; 1.1; 1.2; 1.3; 1.4; 1.5; 1.6; 1.7; and 87 more ranges	CNA record

References

References

https://vuldb.com/vuln/370842	vdb-entry, technical-description
https://vuldb.com/vuln/370842/cti	signature, permissions-required
https://vuldb.com/cve/CVE-2026-12200	third-party-advisory
https://vuldb.com/submit/829894	third-party-advisory
https://nathan2.com/posts/tinyweb/	exploit

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.