EIP-2026-116631

PRE-CVE

Yahoo Messenger 8.1 - ActiveX Remote Denial of Service

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-116631. PoCs published by Jeremy Brown.

AI-analyzed exploit summary This exploit leverages a buffer overflow vulnerability in Yahoo Messenger 8.1 via an ActiveX control (CLSID: 02478D38-C3F9-4EFB-9B51-7695ECA05670) by passing an overly long string argument, causing a remote denial-of-service (DoS). The PoC is minimal but functional, demonstrating the crash condition.

Description

Yahoo Messenger 8.1 - ActiveX Remote Denial of Service

Exploits (1)

exploitdb WORKING POC VERIFIED
by Jeremy Brown · htmldoswindows
https://www.exploit-db.com/exploits/6072

This exploit leverages a buffer overflow vulnerability in Yahoo Messenger 8.1 via an ActiveX control (CLSID: 02478D38-C3F9-4EFB-9B51-7695ECA05670) by passing an overly long string argument, causing a remote denial-of-service (DoS). The PoC is minimal but functional, demonstrating the crash condition.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Yahoo Messenger 8.1
No auth needed
Prerequisites: Victim must open the malicious HTML file in a browser with ActiveX enabled
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026