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Δ / VULNERABILITY RECORD

CVE-2021-42321.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSUnscoredNo severity score in this snapshot.
EXPLOITATION STATUSCISA known exploitedAdded Nov 17, 2021
RECORD STATUSAwaiting NVD dataModified Nov 17, 2021

Disclosure summary

An authenticated attacker could leverage improper validation in cmdlet arguments within Microsoft Exchange and perform remote code execution.

CISA remediation guidance

Apply updates per vendor instructions.

Original records & references

PUBLISHED 2021-11-17T00:00:00-05:00
MODIFIED 2021-11-17T00:00:00-05:00
INGESTED 2026-10-06T11:42:59-04:00