KLA12307
Multiple vulnerabilities in Microsoft Browser

Multiple vulnerabilities were found in Microsoft Browser. Malicious users can exploit these vulnerabilities to execute arbitrary code, cause denial of service.

Below is a complete list of vulnerabilities:

1. An use after free in Garbage Collection can be exploited to cause denial of service or execute arbitrary code.
2. Inappropriate implementation in Sandbox can be exploited to cause denial of service.
3. Heap buffer overflow vulnerability in Blink can be exploited to cause denial of service.
4. Heap buffer overflow vulnerability in WebRTC can be exploited to cause denial of service.

Microsoft Edge (Chromium-based)

Install necessary updates from the Settings and more menu, that are listed in your About Microsoft Edge page (Microsoft Edge About page usually can be accessed from the Help and feedback option)
Microsoft Edge update settings

CVE-2021-37978
CVE-2021-37980
CVE-2021-37979
CVE-2021-37977