IE Mode: A Window to the Web – or to Attackers?

Running short on time but still want to stay in the know? Well, we’ve got you covered! We’ve condensed all the key takeaways into a handy audio summary. Our AI-driven podcasts are fit for on the go. Recently, Internet Explorer IE Mode has been weaponized by threat actors through multiple zero-day...

Microsoft Limits IE Mode in Edge After Chakra Zero-Day Activity Detected

Microsoft restricted access to Edge's IE Mode in August 2025 after hackers used a Chakra zero-day flaw to bypass security and take over user devices. Check out the new steps for enabling IE Mode...

Microsoft Locks Down IE Mode After Hackers Turned Legacy Feature Into Backdoor

Microsoft said it has revamped the Internet Explorer IE mode in its Edge browser after receiving "credible reports" in August 2025 that unknown threat actors were abusing the backward compatibility feature to gain unauthorized access to users' devices. "Threat actors were leveraging basic social...

EUVD-2021-28380

Malicious code in bioql PyPI...

CVE-2020-1220

A spoofing vulnerability exists when theMicrosoft Edge Chromium-based in IE Mode improperly handles specific redirects, aka 'Microsoft Edge Chromium-based in IE Mode Spoofing Vulnerability'...

Microsoft Edge ms-its: Scheme Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Edge. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file while in Internet Explorer mode. The specific flaw...

Six 0-Days Lead Microsoft’s August 2024 Patch Push

Microsoft today released updates to fix at least 90 security vulnerabilities in Windows and related software, including a whopping six zero-day flaws that are already being actively exploited by attackers. Image: Shutterstock. This months bundle of update joy from Redmond includes patches for...

PT-2024-5547

Name of the Vulnerable Software and Affected Versions Microsoft Edge versions prior to the fixed version Microsoft Windows 10 version 1507 prior to 10.0.10240.20751 Description The vulnerability is related to a memory corruption issue in the Windows Scripting Engine, which can be exploited by...

May 23, 2023—KB5026436 (OS Build 22000.2003) Preview

May 23, 2023—KB5026436 OS Build 22000.2003 Preview 3/28/23 IMPORTANT Starting in April 2023, optional, non-security preview updates will release on the fourth Tuesday of the month. For more information, see Windows monthly updates explained. For information about Windows update terminology, see t...

April 25, 2023—KB5025298 (OS Build 22000.1880) Preview

April 25, 2023—KB5025298 OS Build 22000.1880 Preview 3/28/23 IMPORTANT Starting in April 2023, optional, non-security preview updates will release on the fourth Tuesday of the month. For more information, see Windows monthly updates explained. For information about Windows update terminology, see...

April 25, 2023—KB5025297 (OS Build 19045.2913) Preview

April 25, 2023—KB5025297 OS Build 19045.2913 Preview 3/21/23 REMINDER After March 21, 2023, there are no more optional, non-security preview releases for the supported editions of Windows 10, version 20H2 and Windows 10, version 21H2. Only cumulative monthly security updates known as the "B" or...

February 21, 2023—KB5022906 (OS Builds 19042.2673, 19044.2673, and 19045.2673) Preview

February 21, 2023—KB5022906 OS Builds 19042.2673, 19044.2673, and 19045.2673 Preview 1/19/23 IMPORTANT After March 2023, there are no more optional, non-security preview releases for the supported editions of Windows 10, version 20H2 and Windows 10, version 21H2. Only cumulative monthly security...

February 21, 2023—KB5022905 (OS Build 22000.1641) Preview

February 21, 2023—KB5022905 OS Build 22000.1641 Preview For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 11, version 21H2, see its update history page.Note Follow @WindowsUpdate to...

August 26, 2022—KB5016688 (OS Builds 19042.1949, 19043.1949, and 19044.1949) Preview

August 26, 2022—KB5016688 OS Builds 19042.1949, 19043.1949, and 19044.1949 Preview UPDATED 8/26/22 REMINDER Windows Server, version 20H2 reached end of service on August 9, 2022. These devices no longer receive monthly security and quality updates that contain protection from the latest security...

August 25, 2022—KB5016691 (OS Build 22000.918) Preview

August 25, 2022—KB5016691 OS Build 22000.918 Preview For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 11 original release, see its update history page.Note Follow @WindowsUpdate to...

May 24, 2022—KB5014021 (OS Build 20348.740) Preview

May 24, 2022—KB5014021 OS Build 20348.740 Preview For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows Server 2022, see its update history page. Note Follow @WindowsUpdate to find out...

PT-2022-6716 · Microsoft · Edge +1

Name of the Vulnerable Software and Affected Versions: Microsoft Edge Chromium-based affected versions not specified Description: The issue is related to insufficient input validation in the Internet Explorer IE mode of Microsoft Edge, which can be exploited by a remote attacker to conduct spoofi...

PT-2021-5002 · Microsoft · Edge

Name of the Vulnerable Software and Affected Versions: Microsoft Edge Chrome based affected versions not specified Description: The issue is related to errors in the representation of information by the user interface in Microsoft Edge's IE Mode. It may allow a remote attacker to conduct spoofing...

Microsoft Edge 安全漏洞

Microsoft Edge is a web browser from Microsoft Corporation USA that comes with systems after Windows 10. A security vulnerability exists in Microsoft Edge Chromium-based in IE Mode. The following products and versions are affected: Microsoft Edge Chromium-based in IE Mode for Windows 10 Version...

March 25, 2021—KB5000850 (OS Build 18363.1474) Preview

March 25, 2021—KB5000850 OS Build 18363.1474 Preview 2/16/21 IMPORTANT As part of the end of support for Adobe Flash, KB4577586 is now available as an optional update from Windows Update WU and Windows Server Update Services WSUS. Installing KB4577586 will remove Adobe Flash Player permanently fr...