CVE-2022-39945Network attack vector

Authenticated cross-domain data access via unchecked identifiers

Published Nov 2, 2022 · Updated Oct 22, 2024

Improper access control in Fortinet FortiMail allows remote authenticated users to read and modify other domains' information. The cross-domain object lookup accepts a request-supplied identifier without verifying that the referenced domain falls within the logged-in administrator's assigned domain. A domain-scoped administrator account is required on FortiMail 7.2.0, 7.0.0 through 7.0.3, or any 6.4, 6.2, or 6.0 release; no availability impact is reported.

CVSS severity5.4
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Fortinet FortiMail allows remote authenticated users to read and modify other domains' information. The cross-domain object lookup accepts a request-supplied identifier without verifying that the referenced domain falls within the logged-in administrator's assigned domain. A domain-scoped administrator account is required on FortiMail 7.2.0, 7.0.0 through 7.0.3, or any 6.4, 6.2, or 6.0 release; no availability impact is reported.

The record

CVE
CVE-2022-39945
Published
Nov 2, 2022
Updated
Oct 22, 2024
Vendor
Fortinet
Product
FortiMail
Classifications
CWE-639, CWE-284
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 2, 2022CVE publishedPublication date reported by the CVE source.
  2. Oct 22, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=FortiMail 7.2.0, 7.0.0 through 7.0.3, 6.4 all versions, 6.2 all versions, 6.0 all versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Fortinet · FortiMailversion=FortiMail 7.2.0, 7.0.0 through 7.0.3, 6.4 all versions, 6.2 all versions, 6.0 all versions

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
5.4Fortinet, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
CWE-284Improper Access Control

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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