EIP-2026-118949

PRE-CVE

NetcPlus SmartServer 3.5.1 - SMTP Buffer Overflow

Title source: legacy

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-118949. PoCs published by UNYUN.

AI-analyzed exploit summary This exploit targets a buffer overflow vulnerability in SmartServer3's SMTP service via a long MAIL FROM command. It includes shellcode to execute arbitrary commands (e.g., launching 'welcome.exe') and leverages a hardcoded return address (0xbff7a06b) for EIP control.

Description

NetcPlus SmartServer 3.5.1 - SMTP Buffer Overflow

Exploits (1)

exploitdb WORKING POC VERIFIED

by UNYUN · cremotewindows

https://www.exploit-db.com/exploits/19494

View Code ZIP pw:eip

This exploit targets a buffer overflow vulnerability in SmartServer3's SMTP service via a long MAIL FROM command. It includes shellcode to execute arbitrary commands (e.g., launching 'welcome.exe') and leverages a hardcoded return address (0xbff7a06b) for EIP control.

Classification

Working Poc 95%

Attack Type

Rce

Complexity

Moderate

Reliability

Reliable

Target: NetcPlus SmartServer3 (Windows98)

No auth needed

Prerequisites: Network access to SMTP port (25) · Vulnerable SmartServer3 installation

MITRE ATT&CK

T1190 - Exploit Public-Facing Application T1203 - Exploitation for Client Execution

devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve

Tracked Since Feb 18, 2026