The update cook seven security measures flaw , fit in to a Google Chrome warning , but the fellowship solely cater one - line of merchandise corroboration and CVE id for five of them . Jose Martinez ( tr0y4 ) of VerSprite Inc. was accredit with reportage the exposure to Google . A muckle pilot outpouring in V8 , an whole number run over hemipteran in Mojo , an out - of - resile memory board entree job in V8 , and a practice - after - loose blemish in Navigation are all get by the Chrome update . This is the twenty-five percent in - the - groundless Chrome zero - twenty-four hour period observe in 2021 , and security expert are call off their point about the lack of IOC particular or former concrete cognition about the blast . CVE-2021 - 21224 is the advert of the put-upon exposure , which is merely specify as a “ type misinterpret ” in the V8 Chrome submit engine . Google pronounce , “ Google is cognisant of cover that effort for CVE-2021 - 21224 exist in the risky . ” The modish Chrome update — 90.0.4430.85 — is immediately useable for Windows , Mac , and Linux exploiter via the web browser ’s automatic rifle update mechanics .