CVE-2021-26411 Explained : Impact and Mitigation
Learn about CVE-2021-26411 impacting Internet Explorer 9, 11, and Microsoft Edge browsers. Find out its impact, affected systems, and mitigation steps against this HIGH severity issue.
This article provides an overview of CVE-2021-26411, an Internet Explorer Memory Corruption Vulnerability, its impact, technical details, and mitigation strategies.
Understanding CVE-2021-26411
CVE-2021-26411 is a Remote Code Execution vulnerability affecting Internet Explorer 9, Internet Explorer 11, and Microsoft Edge (EdgeHTML-based) browsers.
What is CVE-2021-26411?
The CVE-2021-26411 vulnerability is categorized as a memory corruption issue that could allow an attacker to execute arbitrary code on the affected system remotely.
The Impact of CVE-2021-26411
The impact of this vulnerability is rated as HIGH with a CVSS base score of 8.8, indicating significant risk of compromise and potential for unauthorized system access.
Technical Details of CVE-2021-26411
This section delves into the vulnerability description, affected systems, and the exploitation mechanism.
Vulnerability Description
The vulnerability involves memory corruption in Internet Explorer and Microsoft Edge browsers, enabling attackers to execute malicious code remotely.
Affected Systems and Versions
Affected systems include Windows Server, various Windows 10 versions, Windows 7, Windows 8.1, Windows RT, and multiple editions of Windows Server.
Exploitation Mechanism
The CVE-2021-26411 vulnerability can be exploited by enticing a user to visit a specially crafted webpage, triggering the memory corruption issue.
Mitigation and Prevention
This section outlines immediate steps to take and long-term security practices to mitigate the risk of exploitation.
Immediate Steps to Take
Users are advised to apply security patches promptly, update browsers to the latest versions, and exercise caution while browsing unfamiliar websites.
Long-Term Security Practices
Implementing robust security measures like endpoint protection, network firewalls, and security awareness training can enhance overall defense against similar vulnerabilities.
Patching and Updates
Regularly check for security updates from Microsoft and apply patches to ensure protection against known vulnerabilities.