In an official blog post, Google has confirmed that a new ‘zero-day’ exploit has been found in Chrome after an anonymous tip-off. Most security flaws are discovered and patched before they get out into the wild, but a zero-day classification means the vulnerability is known to hackers and actively being exploited.
To combat this threat, Chrome users should immediately go to Settings > Help > About Google Chrome. If your browser version on Linux, macOS and Windows is listed as 91.0.4472.114 or above you are safe. If not, manually check for updates and restart the browser once the update is ready. Google also confirmed that three other ‘High’ level threats are patched in this version of Chrome.
CVE-2021-30554 is the seventh zero-day vulnerability found in Chrome since the turn of the year and the second in a week. Google typically does a fine job releasing fixes quickly but their effectiveness is also determined by the speed with which Chrome users update their browsers.
Chrome users would also be wise to be extra vigilant at this time. Speaking to BleepingComputer last week, security vendor Kaspersky warned that a new group of hackers calling themselves ‘PuzzleMaker’ have been successful in chaining together Chrome zero-day bugs to install malware on Windows systems. Microsoft itself issued an urgent security warning for Windows users about this last week.
Right now, it appears to be high season for Chrome hackers so stay alert and make sure both your browser and operating system security are kept up to date.
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