Lyrie
Active Exploitation
ACTIVELY EXPLOITED3 sources verified·1 min read
By Lyrie Threat Intelligence·11/3/2021

CVE-2021-34523 added to CISA KEV: Microsoft Exchange Server

Status: ✅ Confirmed exploited in the wild

Date added: 2021-11-03

Required action: Apply updates per vendor instructions.

Due date: 2021-11-17

Why this matters

Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation.

Sources

Lyrie Verdict

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