KB3086255 Update Summary: Fixes Error Code 0x80070422
KB3086255 is a cumulative security update for Internet Explorer 11 that addresses multiple vulnerabilities. These updates are designed to enhance the security posture of systems running Windows operating systems by addressing various security issues and improving the stability and reliability of Internet Explorer. This specific update was released in December 2014 and includes fixes for issues such as cross-site scripting (XSS) attacks, buffer overflows, information disclosure, and others. It also addresses several other vulnerabilities that could allow remote code execution or elevation of privilege if a user views a specially crafted web page using Internet Explorer 11.
Microsoft released this update to protect users from potential security threats by fixing these vulnerabilities in the software. By installing KB3086255, system administrators and end-users can mitigate risks associated with exploitation of these vulnerabilities and ensure that their systems remain secure against known attack vectors.
KB3086255 Description: This update resolves several issues including Error Code 0x80070422, affecting system stability and performance.
This cumulative security update resolves several critical issues affecting Internet Explorer 11:
– **Cross-site scripting (XSS) vulnerabilities**: These vulnerabilities could allow an attacker to inject malicious script into a trusted webpage, which would then execute within the user’s browser with the permissions of the trusting site.
– **Buffer overflows in JavaScript engine and VBScript engine**: The update addresses multiple buffer overflow vulnerabilities that occur when Internet Explorer attempts to access or write data outside the range allocated for a buffer. Exploitation could lead to remote code execution, which would allow an attacker to take control of the affected system entirely.
– **Information disclosure issues**: These flaws could enable attackers to gain unauthorized access to sensitive information about users’ systems through various channels and methods, including improper handling of objects in memory.
Additionally, KB3086255 fixes other security vulnerabilities that may lead to elevation of privilege or denial of service attacks. These issues are detailed in the Security Update Guide (SUM) on Microsoft’s website, where each vulnerability is rated according to its severity level and impact. Installing this update ensures that Internet Explorer 11 remains protected against these threats.
Furthermore, apart from security enhancements, KB3086255 also includes improvements for stability and reliability of Internet Explorer when interacting with web pages and applications online. These changes help improve user experience by reducing instances where the browser crashes or malfunctions due to issues within itself or third-party add-ons it interacts with.
Howto install KB3086255
To install update KB3086255 on your system, follow these steps:
1.
- Download the update from Microsoft’s official website if you do not already have it.
2.
- Navigate to Control Panel → Windows Update → View installed updates to confirm whether KB3086255 is present on your system; proceed only if it is missing or needs updating.
3.
- Open the downloaded update file and follow any prompts that appear during installation, such as agreeing to license terms.
4.
- If prompted by Windows Update for other pending updates first before installing KB3086255, complete these installations before continuing with this one.
5.
- Once prerequisites are met or bypassed, proceed directly to installation if the update is available via Automatic Updates by clicking “Check for updates” and then “Install updates.”
6.
- Restart your computer after downloading completes as instructed during the update process.
7.
- Avoid closing Internet Explorer while the installation is in progress; wait until notified that it has completed successfully.
8.
- Verify that KB3086255 was correctly installed by checking through Control Panel → Programs and Features (Windows 10/11) or Add or Remove Programs (Windows 8).
Similar questions
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