EIP-2026-102833

PRE-CVE

Exim 4 (Debian 8 / Ubuntu 16.04) - Spool Privilege Escalation

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-102833. PoCs published by halfdog.

AI-analyzed exploit summary This exploit leverages a symlink attack in Exim4's spool directory handling to escalate privileges from the Debian-exim user to root. It manipulates spool files and replaces a critical library (libpam) to execute arbitrary code with elevated privileges.

Description

Exim 4 (Debian 8 / Ubuntu 16.04) - Spool Privilege Escalation

Exploits (1)

exploitdb WORKING POC
by halfdog · clocallinux
https://www.exploit-db.com/exploits/40054

This exploit leverages a symlink attack in Exim4's spool directory handling to escalate privileges from the Debian-exim user to root. It manipulates spool files and replaces a critical library (libpam) to execute arbitrary code with elevated privileges.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: Exim4 (Debian/Ubuntu variants)
Auth required
Prerequisites: Access to Debian-exim user · Write access to /var/spool/exim4 · Exim4 running with vulnerable configuration
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026