Security News > 2021 > May > May 2021 Patch Tuesday: Adobe fixes exploited Reader 0-day, Microsoft patches 55 holes

Adobe has fixed a Reader flaw exploited in attacks in the wild, as well as delivered security updates for eleven other products, including Magento, Adobe InDesign, Adobe After Effects, Adobe Creative Cloud Desktop Application, and others.

Microsoft has plugged 55 security holes, none actively exploited.

Another good reason is that one of these - CVE-2021-28550 - "Has been exploited in the wild in limited attacks targeting Adobe Reader users on Windows."

Microsoft delivered a lighter than usual load of updates on this May 2021 Patch Tuesday, though it covers a wide variety of products.

55 vulnerabilities in all have been fixed, 4 of which are critical, 3 previously publicly known, and none are currently exploited by attackers.

Finally, administrators should consider a quick implementation of updates for Microsoft Exchange Server and Microsoft SharePoint Server, as they are often targeted by attackers.

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