CVE-2024-40592

Malicious package execution via installer race

Published Nov 12, 2024 · Updated Nov 13, 2024

Improper signature verification in affected Fortinet FortiClient for macOS releases allows local users to replace its installer package. During installation, a time-of-check/time-of-use race permits package exchange after signature verification but before installer use. Local authenticated access and user interaction are required; affected releases are 6.4.0 through 6.4.10, 7.0.0 through 7.0.10, 7.2.0 through 7.2.4, and 7.4.0.

CVSS severity7.5
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper signature verification in affected Fortinet FortiClient for macOS releases allows local users to replace its installer package. During installation, a time-of-check/time-of-use race permits package exchange after signature verification but before installer use. Local authenticated access and user interaction are required; affected releases are 6.4.0 through 6.4.10, 7.0.0 through 7.0.10, 7.2.0 through 7.2.4, and 7.4.0.

The record

CVE
CVE-2024-40592
Published
Nov 12, 2024
Updated
Nov 13, 2024
Vendor
Fortinet
Product
FortiClient for macOS
Classifications
CWE-347, T1574
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 13, 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=6.4.0 <=6.4.10
  2. Affected versionversion=7.0.0 <=7.0.10
  3. Affected versionversion=7.2.0 <=7.2.4
  4. Affected versionversion=7.4.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Fortinet · FortiClient for macOSversion=6.4.0 <=6.4.10; version=7.0.0 <=7.0.10; version=7.2.0 <=7.2.4; version=7.4.0

Published CVSS scores

7.5Fortinet, Inc.CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
6.7NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
T1574Hijack Execution Flow

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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