Skip to content
Fencer Vulns
high 8.0

CVE-2022-24477 json

Microsoft Exchange Server Elevation of Privilege Vulnerability

published 2022-08-09 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-29358

cvss
8.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

Microsoft Exchange Server Elevation of Privilege Vulnerability

Patch / fix

  • Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 15.00.1497.042
  • Microsoft Microsoft Exchange Server 2016 Cumulative Update 22 15.01.2375.032
  • Microsoft Microsoft Exchange Server 2019 Cumulative Update 11 15.02.0986.030
  • Microsoft Microsoft Exchange Server 2019 Cumulative Update 12 15.02.1118.015
  • Microsoft Microsoft Exchange Server 2016 Cumulative Update 23 15.01.2507.013

Exploit prediction

2.31% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CNA 3.1 8.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Microsoft Microsoft Exchange Server 2013 Cumulative Update 23
  • Microsoft Microsoft Exchange Server 2016 Cumulative Update 22
  • Microsoft Microsoft Exchange Server 2019 Cumulative Update 11
  • Microsoft Microsoft Exchange Server 2019 Cumulative Update 12
  • Microsoft Microsoft Exchange Server 2016 Cumulative Update 23

Classification

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.