Windows 98 Unchecked Buffer Help Security Vulnerability Patch

Used Windows 98 Unchecked Buffer Help Security Vulnerability Patch for Windows?

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Editors’ Review

Download.com staffFebruary 26, 2026

This security update from Microsoft prevents unauthorized program execution by addressing a critical ActiveX buffer vulnerability in Windows HTML Help.

Pros
- Prevents unauthorized program execution
- Fixes ActiveX control vulnerability
- Secures HTML Help functionality
- Protects user security context
- Enhances system privilege control
Cons
- Addresses a specific ActiveX control issue
- Requires installation as a security update

Windows 98 Unchecked Buffer Help Security Vulnerability Patch

Used Windows 98 Unchecked Buffer Help Security Vulnerability Patch for Windows?

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Full Specifications

GENERAL

Release: October 31, 2002

Latest update: February 26, 2026

Version: MS02-055

OPERATING SYSTEMS

Platform: Windows

Operating System

Windows 10
Windows 98

Additional Requirements: Windows 98/98SE

POPULARITY

Total Downloads: 8,367

Downloads Last Week: 0

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Descargar Windows 98 Unchecked Buffer Help Security Vulnerability Patch

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Developer’s Description

Prevent a malicious user from running an unauthorized program on your computer with this security update.

The HTML Help facility in Windows includes an ActiveX control that provides much of its functionality. One of the functions that is exposed through the control contains an unchecked buffer. This buffer may be exploited by a Web page that is hosted on an attacker's site or that is sent to a user as an HTML message. An attacker who successfully exploits the vulnerability can run code in the security context of the user, and as a result, an attacker can gain the same privileges as the user on the computer.