EIP-2026-104057

PRE-CVE

Qmail SMTP 1.03 - Bash Environment Variable Injection

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-104057. PoCs published by 1F98D.

AI-analyzed exploit summary This exploit leverages the Shellshock vulnerability (CVE-2014-6271) in Qmail SMTP 1.03 by injecting a malicious Bash environment variable via the MAIL FROM field. It sends an SMTP command with a crafted payload to execute arbitrary commands on the target system.

Description

Qmail SMTP 1.03 - Bash Environment Variable Injection

Exploits (1)

exploitdb WORKING POC
by 1F98D · textremotemultiple
https://www.exploit-db.com/exploits/48651

This exploit leverages the Shellshock vulnerability (CVE-2014-6271) in Qmail SMTP 1.03 by injecting a malicious Bash environment variable via the MAIL FROM field. It sends an SMTP command with a crafted payload to execute arbitrary commands on the target system.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: Qmail SMTP 1.03
No auth needed
Prerequisites: Network access to the SMTP service (port 25) · Qmail SMTP 1.03 with vulnerable Bash version
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026