CVE-2021-34523HighMicrosoft CVSS 9.0CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C

Microsoft security update for CVE-2021-34523 — Microsoft Exchange Server

Published
July 13, 2021
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2021-34523 →

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34523. This page also shows what EchelonGraph holds for CVE-2021-34523, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products5

  • Microsoft Exchange Server 2013 Cumulative Update 23
  • Microsoft Exchange Server 2016 Cumulative Update 19
  • Microsoft Exchange Server 2016 Cumulative Update 20
  • Microsoft Exchange Server 2019 Cumulative Update 8
  • Microsoft Exchange Server 2019 Cumulative Update 9

✅ Updates Microsoft lists: 5 updates

5 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
—Security Update15.00.1497.015
—Security Update15.02.0858.010
—Security Update15.01.2242.008
—Security Update15.01.2176.012
—Security Update15.02.0792.013

🧭 EchelonGraph on CVE-2021-34523

EchelonGraph score
9.8 CRITICAL
CISA KEV
Listed since November 3, 2021
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

Microsoft Exchange Server Elevation of Privilege Vulnerability

Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2021-34523, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (7)