EIP-2026-100685

PRE-CVE

FreeBSD 4.x / < 5.4 - 'master.passwd' Disclosure

Title source: legacy

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-100685. PoCs published by kingcope.

AI-analyzed exploit summary This exploit leverages a FreeBSD sendfile() vulnerability (CVE-2005-0243) to disclose the master.passwd file by triggering a kernel memory leak. It creates a large file, uses sendfile() to corrupt kernel memory, and listens on a socket to capture leaked data.

Description

FreeBSD 4.x / < 5.4 - 'master.passwd' Disclosure

Exploits (1)

exploitdb WORKING POC VERIFIED

by kingcope · clocalbsd

https://www.exploit-db.com/exploits/1311

View Code ZIP pw:eip

This exploit leverages a FreeBSD sendfile() vulnerability (CVE-2005-0243) to disclose the master.passwd file by triggering a kernel memory leak. It creates a large file, uses sendfile() to corrupt kernel memory, and listens on a socket to capture leaked data.

Classification

Working Poc 95%

Attack Type

Info Leak

Complexity

Moderate

Reliability

Reliable

Target: FreeBSD 4.11-RELEASE (unpatched)

No auth needed

Prerequisites: Unpatched FreeBSD 4.11-RELEASE system · Ability to execute code on the target

MITRE ATT&CK

T1005 - Data from Local System T1068 - Exploitation for Privilege Escalation

devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve

Tracked Since Feb 18, 2026