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Executive Summary This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
Microsoft is aware of reports that exploits for CVE-2021-21206 exist in the wild.
Update & Detail Chromium: CVE-2021-21206 Use after free in Blink 
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thank you Templateism for the design - You should have written the code a little more complicated - Nothing Encrypted anymore