CVE-2021-33766.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSUnscoredNo severity score in this snapshot.

EXPLOITATION STATUSCISA known exploitedAdded Jan 18, 2022

RECORD STATUSAwaiting NVD dataModified Jan 18, 2022

Disclosure summary

Microsoft Exchange Server contains an information disclosure vulnerability which can allow an unauthenticated attacker to steal email traffic from target.

CISA remediation guidance

Apply updates per vendor instructions.

Original records & references

NIST NVD record
CVE Program record
CISA KEV catalog entry

PUBLISHED 2022-01-18T00:00:00-05:00
MODIFIED 2022-01-18T00:00:00-05:00
INGESTED 2026-10-06T11:42:59-04:00