EIP-2026-103039

PRE-CVE

XFree86 4.2 - 'XLOCALEDIR' Local Buffer Overflow (1)

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103039. PoCs published by dcryptr && tarranta.

AI-analyzed exploit summary This exploit targets a buffer overflow vulnerability in XFree86 utilities (e.g., xlock, xterm) via the XLOCALEDIR environment variable. It leverages a strcpy overflow to overwrite the EIP and execute shellcode for local privilege escalation to root.

Description

XFree86 4.2 - 'XLOCALEDIR' Local Buffer Overflow (1)

Exploits (1)

exploitdb WORKING POC VERIFIED
by dcryptr && tarranta · clocallinux
https://www.exploit-db.com/exploits/22320

This exploit targets a buffer overflow vulnerability in XFree86 utilities (e.g., xlock, xterm) via the XLOCALEDIR environment variable. It leverages a strcpy overflow to overwrite the EIP and execute shellcode for local privilege escalation to root.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: XFree86 Version 4.2.x (e.g., Slackware 8.1)
No auth needed
Prerequisites: Local access to a vulnerable system · SUID binaries (e.g., xlock, xterm) using the vulnerable XFree86 library
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026