EIP-2026-116565

PRE-CVE

WinWebMail 3.7.3 - IMAP Login Data Handling Denial of Service

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-116565. PoCs published by ryujin.

AI-analyzed exploit summary This Python script exploits a denial-of-service vulnerability in WinWebMail 3.7.3.2 by sending a crafted LOGIN command with a 225-byte buffer of 'A' characters, causing the server to crash due to inadequate boundary checks.

Description

WinWebMail 3.7.3 - IMAP Login Data Handling Denial of Service

Exploits (1)

exploitdb WORKING POC VERIFIED
by ryujin · pythondoswindows
https://www.exploit-db.com/exploits/31635

This Python script exploits a denial-of-service vulnerability in WinWebMail 3.7.3.2 by sending a crafted LOGIN command with a 225-byte buffer of 'A' characters, causing the server to crash due to inadequate boundary checks.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: WinWebMail 3.7.3.2
No auth needed
Prerequisites: Network access to the target server · WinWebMail service running on the target
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026