CVE-2024-26009Network attack vector

Device takeover via crafted FGFM requests

Published Aug 12, 2025 · Updated Apr 20, 2026

Authentication bypass in Fortinet FortiOS, FortiPAM, FortiProxy, and FortiSwitch Manager allows remote attackers to seize managed devices. Crafted FGFM requests traverse an alternate authentication path that processes management traffic without authenticating the sender. Exploitation requires FortiManager management of the target and knowledge of that FortiManager serial number, enabling full device control.

CVSS severity9.2
Critical
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Fortinet FortiOS, FortiPAM, FortiProxy, and FortiSwitch Manager allows remote attackers to seize managed devices. Crafted FGFM requests traverse an alternate authentication path that processes management traffic without authenticating the sender. Exploitation requires FortiManager management of the target and knowledge of that FortiManager serial number, enabling full device control.

The record

CVE
CVE-2024-26009
Published
Aug 12, 2025
Updated
Apr 20, 2026
Vendor
Fortinet
Product
FortiOS
Classifications
CWE-288, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 20, 2026Record 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=6.0.0 <=6.0.18
  2. Affected versionversion=6.2.0 <=6.2.16
  3. Affected versionversion=6.4.0 <=6.4.15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fortinet · FortiOSversion=6.0.0 <=6.0.18; version=6.2.0 <=6.2.16; version=6.4.0 <=6.4.15
Fortinet · FortiPAMversion=1.0.0 <=1.0.3; version=1.1.0 <=1.1.2; version=1.2.0
Fortinet · FortiSwitch Managerversion=7.0.0 <=7.0.3; version=7.2.0 <=7.2.3
Fortinet · FortiProxyversion=7.0.0 <=7.0.15; version=7.2.0 <=7.2.8; version=7.4.0 <=7.4.2

Published CVSS scores

8.1Siemens ProductCERTCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2Siemens ProductCERTCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-288Authentication Bypass Using an Alternate Path or Channel
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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