CVE-2024-52965Network attack vector

Authenticated API login via invalid certificate acceptance

Published Jul 8, 2025 · Updated Jul 8, 2025

Authentication bypass in affected Fortinet FortiOS and FortiProxy releases allows remote authenticated users to log in with an invalid certificate. The API-key plus PKI authentication path grants a session despite an invalid client certificate, omitting a critical certificate-validation step. An attacker must possess a valid API key for a configured PKI-protected API user; successful login provides that account's assigned API privileges.

CVSS severity7.2
High
EPSS probability0.26%
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 affected Fortinet FortiOS and FortiProxy releases allows remote authenticated users to log in with an invalid certificate. The API-key plus PKI authentication path grants a session despite an invalid client certificate, omitting a critical certificate-validation step. An attacker must possess a valid API key for a configured PKI-protected API user; successful login provides that account's assigned API privileges.

The record

CVE
CVE-2024-52965
Published
Jul 8, 2025
Updated
Jul 8, 2025
Vendor
Fortinet
Product
FortiOS
Classifications
CWE-304, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 8, 2025Record 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=7.0.1 <=7.0.16
  2. Affected versionversion=7.2.0 <=7.2.10
  3. Affected versionversion=7.4.0 <=7.4.5
  4. Affected versionversion=7.6.0 <=7.6.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Fortinet · FortiOSversion=7.0.1 <=7.0.16; version=7.2.0 <=7.2.10; version=7.4.0 <=7.4.5; version=7.6.0 <=7.6.1
Fortinet · FortiProxyversion=7.0.0 <=7.0.20; version=7.2.0 <=7.2.13; version=7.4.0 <=7.4.8; version=7.6.0 <=7.6.1

Published CVSS scores

6.8Fortinet, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C
7.2Fortinet, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-304Missing Critical Step in Authentication
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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