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Waterloo, ON–September 6, 2023 – eSentire, Inc., the Authority in Managed Detection and Response (MDR), and Kterio, the leading provider of smart building operating systems, today announced that they… READ NOW
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In the March Microsoft Patch Tuesday release, Microsoft disclosed an actively exploited zero-day vulnerability impacting the Edge (EdgeHTML-based) and Internet Explorer (versions 9 & 11) web-browsers. The vulnerability is tracked as CVE-2021-26411 and received a criticality score of 8.8/10. If exploited, the vulnerability allows for Remote Code Execution (RCE).
Organizations are strongly recommended to apply the security patches provided by Microsoft, as attacks have been identified in the wild.
What we’re doing about it
What you should do about it
Details of real-world attacks involving CVE-2021-26411 have not been shared. It is currently unclear how widespread exploitation is of the vulnerability.
In an attack scenario, a threat actor could either host their own malicious page or compromise another website. Users visiting the malicious page from a vulnerable browser will result in the compromise. The only required user interaction is viewing the malicious page, making this an ideal vulnerability for drive-by exploit attacks.