Cyber Risks · Krebs on Security

Microsoft Patch Tuesday, March 2020 Edition

Summary: Microsoft's March 2020 Patch Tuesday addressed at least 115 security flaws, 26 of them rated critical, with no zero-day bugs and no Adobe patches released the same day. Notable fixes included CVE-2020-0852, a Word flaw exploitable by loading a booby-trapped document in the Outlook preview pane, and CVE-2020-0872, a weakness in Microsoft's own Application Inspector source-code analyzer, while Recorded Future warned that exploit code for the Exchange bug CVE-2020-0688 patched in February was available and being used by nation-state actors.

Why it matters: An unauthenticated attacker sending a crafted packet to an SMBv3 server could exploit the wormable flaw Microsoft disclosed in an evening advisory, and Recorded Future's warning that nation-state actors were already abusing the February Exchange exploit shows how fast patched bugs become weapons.

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Topics
Vulnerabilities & Patching
Mentions
CVE-2020-0688CVE-2020-0852CVE-2020-0872
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