EIP-2026-119525

PRE-CVE

Fortinet FortiClient 5.2.3 (Windows 10 x86) - Local Privilege Escalation

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-119525. PoCs published by sickness.

AI-analyzed exploit summary This is a functional exploit for a local privilege escalation vulnerability in FortiShield.sys (5.2.3.633) on Windows 10 x86 (1703/1709). It leverages a vulnerable IOCTL handler to achieve arbitrary kernel memory manipulation, bypasses SMEP via a PTE manipulation gadget, and executes a token-stealing shellcode to escalate privileges.

Description

Fortinet FortiClient 5.2.3 (Windows 10 x86) - Local Privilege Escalation

Exploits (1)

exploitdb WORKING POC VERIFIED
by sickness · c++localwindows_x86
https://www.exploit-db.com/exploits/41705

This is a functional exploit for a local privilege escalation vulnerability in FortiShield.sys (5.2.3.633) on Windows 10 x86 (1703/1709). It leverages a vulnerable IOCTL handler to achieve arbitrary kernel memory manipulation, bypasses SMEP via a PTE manipulation gadget, and executes a token-stealing shellcode to escalate privileges.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: FortiShield.sys 5.2.3.633 on Windows 10 x86 (1703/1709)
No auth needed
Prerequisites: Access to a vulnerable Windows 10 x86 system with FortiShield.sys 5.2.3.633 installed · Ability to execute code on the target system
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026