ACTIVELY EXPLOITED3 sources verified·1 min read
By Lyrie Threat Intelligence·11/17/2021
CVE-2021-42321 added to CISA KEV: Microsoft Exchange
Status: ✅ Confirmed exploited in the wild
Date added: 2021-11-17
Required action: Apply updates per vendor instructions.
Due date: 2021-12-01
Why this matters
An authenticated attacker could leverage improper validation in cmdlet arguments within Microsoft Exchange and perform remote code execution.
Sources
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