EIP-2026-118987

PRE-CVE

OpenText FirstClass Client 11.005 - Code Execution

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-118987. PoCs published by Kyle Ossinger.

AI-analyzed exploit summary This exploit leverages an implementation flaw in OpenText FirstClass Client to create a malicious HTA file via a crafted URI, which executes upon system reboot. The attack abuses the client's settings file mechanism to inject and execute arbitrary code.

Description

OpenText FirstClass Client 11.005 - Code Execution

Exploits (1)

exploitdb WORKING POC
by Kyle Ossinger · textremotewindows
https://www.exploit-db.com/exploits/17156

This exploit leverages an implementation flaw in OpenText FirstClass Client to create a malicious HTA file via a crafted URI, which executes upon system reboot. The attack abuses the client's settings file mechanism to inject and execute arbitrary code.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: OpenText FirstClass Client v.11 and lower
No auth needed
Prerequisites: Victim must click on a crafted link in the FirstClass mail client · Attacker must host a malicious JavaScript file
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026