CVE-2026-12200CWE-119CWE-121

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

Medium · published June 15, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
24.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00324 · 24.2th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
Published
2026-06-15T00:15Z
EPSS history
Timeline
  • 15 JUN 00:15Z
    Ritlabs TinyWeb Server Header libeay32.dll.html stack-based overflow
    cvelistv5