KLA12333
Multiple vulnerabilities in Microsoft Browser

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

Below is a complete list of vulnerabilities:

1. Data validation vulnerability in New Tab Page can be exploited to bypass security restrictions.
2. Use after vulnerability free in Sign-In can be exploited to cause denial of service or execute arbitrary code.
3. Use after vulnerability free in Web Transport can be exploited to cause denial of service or execute arbitrary code.
4. Implementation vulnerability in V8 can be exploited to cause denial of service.
5. Use after vulnerability free in Garbage Collections can be exploited to cause denial of service or execute arbitrary code.
6. Type confusion vulnerability in V8 can be exploited to cause denial of service.
7. Validation of untrusted input vulnerability in Intents can be exploited to bypass security restrictions.

Microsoft Edge (Chromium-based)

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

CVE-2021-37999
CVE-2021-37997
CVE-2021-38002
CVE-2021-38003
CVE-2021-37998
CVE-2021-38001
CVE-2021-38000