EIP-2026-117579

PRE-CVE

Microsoft Windows Server 2000 - Help Facility '.CNT' File :Link Buffer Overflow

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-117579. PoCs published by s0h.

AI-analyzed exploit summary This exploit targets a buffer overflow vulnerability in the Microsoft Windows 2000 Help facility by crafting a malicious .cnt file with an overly long :Link URI. It includes shellcode to download and execute arbitrary code, demonstrating a functional proof-of-concept for remote code execution.

Description

Microsoft Windows Server 2000 - Help Facility '.CNT' File :Link Buffer Overflow

Exploits (1)

exploitdb WORKING POC VERIFIED
by s0h · clocalwindows
https://www.exploit-db.com/exploits/22354

This exploit targets a buffer overflow vulnerability in the Microsoft Windows 2000 Help facility by crafting a malicious .cnt file with an overly long :Link URI. It includes shellcode to download and execute arbitrary code, demonstrating a functional proof-of-concept for remote code execution.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows 2000 Help facility (winhlp32.exe)
No auth needed
Prerequisites: Access to modify a .cnt file · Victim interaction to open the malicious .cnt file
devstral-2 · analyzed Feb 19, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026