Fortinet Multiple Products Authentication Bypass Using an Alternate Path or Channel Vulnerability
- Sévérité
- Critique9,8CVSS 3.1, Critique
- EPSS
- 86 %
- Publiée
- 27 janv. 2026
- Mise à jour
- 17 juin 2026
Description
Le titre, la description et les consignes de l’éditeur sont cités depuis les enregistrements sources (en anglais).
An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] vulnerability in Fortinet FortiAnalyzer 7.6.0 through 7.6.5, FortiAnalyzer 7.4.0 through 7.4.9, FortiAnalyzer 7.2.0 through 7.2.11, FortiAnalyzer 7.0.0 through 7.0.15, FortiManager 7.6.0 through 7.6.5, FortiManager 7.4.0 through 7.4.9, FortiManager 7.2.0 through 7.2.11, FortiManager 7.0.0 through 7.0.15, FortiNAC-F 7.6.3 through 7.6.5, FortiOS 7.6.0 through 7.6.5, FortiOS 7.4.0 through 7.4.10, FortiOS 7.2.0 through 7.2.12, FortiOS 7.0.0 through 7.0.18, FortiProxy 7.6.0 through 7.6.4, FortiProxy 7.4.0 through 7.4.12, FortiProxy 7.2.0 through 7.2.15, FortiProxy 7.0.0 through 7.0.22, FortiWeb 8.0.0 through 8.0.3, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4.0 through 7.4.11 may allow an attacker with a FortiCloud account and a registered device to log into other devices registered to other accounts, if FortiCloud SSO authentication is enabled on those devices.
Faiblesse : CWE-288
Exploitée activement
Ajoutée au catalogue CISA KEV le 27 janv. 2026
Date limite de remédiation fédérale : 30 janv. 2026
Action requise : Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Prédiction d’exploitation
Probabilité d’exploitation de 86 % dans les 30 prochains jours (percentile 100 %).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Ce qu’indique la source, par branche
Versions comparées par Patcharo
Fortinet FortiWebSource : Fortinet (CVE record)
| Branche | Affectées | Corrigé en |
|---|---|---|
| 8.0 | 8.0.0 – 8.0.3 | Corrigé après 8.0.3 |
| 7.6 | 7.6.0 – 7.6.6 | Corrigé après 7.6.6 |
| 7.4 | 7.4.0 – 7.4.11 | Corrigé après 7.4.11 |
Selon l’éditeur, les versions non listées ne sont pas affectées.
Fortinet FortiOSSource : Fortinet (CVE record)
| Branche | Affectées | Corrigé en |
|---|---|---|
| 7.6 | 7.6.0 – 7.6.5 | Corrigé après 7.6.5 |
| 7.4 | 7.4.0 – 7.4.10 | Corrigé après 7.4.10 |
| 7.2 | 7.2.0 – 7.2.12 | Corrigé après 7.2.12 |
| 7.0 | 7.0.0 – 7.0.18 | Corrigé après 7.0.18 |
Selon l’éditeur, les versions non listées ne sont pas affectées.
Fortinet FortiAnalyzerSource : Fortinet (CVE record)
| Branche | Affectées | Corrigé en |
|---|---|---|
| 7.6 | 7.6.0 – 7.6.5 | Corrigé après 7.6.5 |
| 7.4 | 7.4.0 – 7.4.9 | Corrigé après 7.4.9 |
| 7.2 | 7.2.0 – 7.2.11 | Corrigé après 7.2.11 |
| 7.0 | 7.0.0 – 7.0.15 | Corrigé après 7.0.15 |
Selon l’éditeur, les versions non listées ne sont pas affectées.
Fortinet FortiProxySource : Fortinet (CVE record)
| Branche | Affectées | Corrigé en |
|---|---|---|
| 7.6 | 7.6.0 – 7.6.4 | Corrigé après 7.6.4 |
| 7.4 | 7.4.0 – 7.4.12 | Corrigé après 7.4.12 |
| 7.2 | 7.2.0 – 7.2.15 | Corrigé après 7.2.15 |
| 7.0 | 7.0.0 – 7.0.22 | Corrigé après 7.0.22 |
Selon l’éditeur, les versions non listées ne sont pas affectées.
Fortinet FortiManagerSource : Fortinet (CVE record)
| Branche | Affectées | Corrigé en |
|---|---|---|
| 7.6 | 7.6.0 – 7.6.5 | Corrigé après 7.6.5 |
| 7.4 | 7.4.0 – 7.4.9 | Corrigé après 7.4.9 |
| 7.2 | 7.2.0 – 7.2.11 | Corrigé après 7.2.11 |
| 7.0 | 7.0.0 – 7.0.15 | Corrigé après 7.0.15 |
Selon l’éditeur, les versions non listées ne sont pas affectées.
Produits concernés
- Fortinet FortiNAC-F · 7.6.3 ≤ 7.6.5
Contournement / Remédiation de l’éditeur
Remédiation de l’éditeur · FortiWeb
Upgrade to upcoming FortiOS version 8.0.0 or above Upgrade to FortiOS version 7.6.6 or above Upgrade to FortiOS version 7.4.11 or above Upgrade to FortiOS version 7.2.13 or above Upgrade to FortiOS version 7.0.19 or above Upgrade to upcoming FortiManager version 8.0.0 or above Upgrade to FortiManager version 7.6.6 or above Upgrade to FortiManager version 7.4.10 or above Upgrade to FortiManager version 7.2.12 or above Upgrade to FortiManager version 7.0.16 or above Upgrade to FortiAnalyzer version 7.6.6 or above Upgrade to FortiAnalyzer version 7.4.10 or above Upgrade to FortiAnalyzer version 7.2.12 or above Upgrade to FortiAnalyzer version 7.0.16 or above Upgrade to FortiProxy version 7.6.5 or above Upgrade to FortiProxy version 7.4.13 or above Upgrade to FortiProxy version 7.2.16 or above Upgrade to FortiProxy version 7.0.23 or above Upgrade to FortiWeb version 8.0.4 or above Upgrade t…
Remédiation de l’éditeur · FortiOS
Upgrade to upcoming FortiOS version 8.0.0 or above Upgrade to FortiOS version 7.6.6 or above Upgrade to FortiOS version 7.4.11 or above Upgrade to FortiOS version 7.2.13 or above Upgrade to FortiOS version 7.0.19 or above Upgrade to upcoming FortiManager version 8.0.0 or above Upgrade to FortiManager version 7.6.6 or above Upgrade to FortiManager version 7.4.10 or above Upgrade to FortiManager version 7.2.12 or above Upgrade to FortiManager version 7.0.16 or above Upgrade to FortiAnalyzer version 7.6.6 or above Upgrade to FortiAnalyzer version 7.4.10 or above Upgrade to FortiAnalyzer version 7.2.12 or above Upgrade to FortiAnalyzer version 7.0.16 or above Upgrade to FortiProxy version 7.6.5 or above Upgrade to FortiProxy version 7.4.13 or above Upgrade to FortiProxy version 7.2.16 or above Upgrade to FortiProxy version 7.0.23 or above Upgrade to FortiWeb version 8.0.4 or above Upgrade t…
Remédiation de l’éditeur · FortiAnalyzer
Upgrade to upcoming FortiOS version 8.0.0 or above Upgrade to FortiOS version 7.6.6 or above Upgrade to FortiOS version 7.4.11 or above Upgrade to FortiOS version 7.2.13 or above Upgrade to FortiOS version 7.0.19 or above Upgrade to upcoming FortiManager version 8.0.0 or above Upgrade to FortiManager version 7.6.6 or above Upgrade to FortiManager version 7.4.10 or above Upgrade to FortiManager version 7.2.12 or above Upgrade to FortiManager version 7.0.16 or above Upgrade to FortiAnalyzer version 7.6.6 or above Upgrade to FortiAnalyzer version 7.4.10 or above Upgrade to FortiAnalyzer version 7.2.12 or above Upgrade to FortiAnalyzer version 7.0.16 or above Upgrade to FortiProxy version 7.6.5 or above Upgrade to FortiProxy version 7.4.13 or above Upgrade to FortiProxy version 7.2.16 or above Upgrade to FortiProxy version 7.0.23 or above Upgrade to FortiWeb version 8.0.4 or above Upgrade t…
Remédiation de l’éditeur · FortiProxy
Upgrade to upcoming FortiOS version 8.0.0 or above Upgrade to FortiOS version 7.6.6 or above Upgrade to FortiOS version 7.4.11 or above Upgrade to FortiOS version 7.2.13 or above Upgrade to FortiOS version 7.0.19 or above Upgrade to upcoming FortiManager version 8.0.0 or above Upgrade to FortiManager version 7.6.6 or above Upgrade to FortiManager version 7.4.10 or above Upgrade to FortiManager version 7.2.12 or above Upgrade to FortiManager version 7.0.16 or above Upgrade to FortiAnalyzer version 7.6.6 or above Upgrade to FortiAnalyzer version 7.4.10 or above Upgrade to FortiAnalyzer version 7.2.12 or above Upgrade to FortiAnalyzer version 7.0.16 or above Upgrade to FortiProxy version 7.6.5 or above Upgrade to FortiProxy version 7.4.13 or above Upgrade to FortiProxy version 7.2.16 or above Upgrade to FortiProxy version 7.0.23 or above Upgrade to FortiWeb version 8.0.4 or above Upgrade t…
Remédiation de l’éditeur · FortiManager
Upgrade to upcoming FortiOS version 8.0.0 or above Upgrade to FortiOS version 7.6.6 or above Upgrade to FortiOS version 7.4.11 or above Upgrade to FortiOS version 7.2.13 or above Upgrade to FortiOS version 7.0.19 or above Upgrade to upcoming FortiManager version 8.0.0 or above Upgrade to FortiManager version 7.6.6 or above Upgrade to FortiManager version 7.4.10 or above Upgrade to FortiManager version 7.2.12 or above Upgrade to FortiManager version 7.0.16 or above Upgrade to FortiAnalyzer version 7.6.6 or above Upgrade to FortiAnalyzer version 7.4.10 or above Upgrade to FortiAnalyzer version 7.2.12 or above Upgrade to FortiAnalyzer version 7.0.16 or above Upgrade to FortiProxy version 7.6.5 or above Upgrade to FortiProxy version 7.4.13 or above Upgrade to FortiProxy version 7.2.16 or above Upgrade to FortiProxy version 7.0.23 or above Upgrade to FortiWeb version 8.0.4 or above Upgrade t…
Références
- https://fortiguard.fortinet.com/psirt/FG-IR-26-060(s’ouvre dans un nouvel onglet)
- https://cert-portal.siemens.com/productcert/html/ssa-975644.html(s’ouvre dans un nouvel onglet)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-24858(s’ouvre dans un nouvel onglet)
- https://www.fortinet.com/blog/psirt-blogs/analysis-of-sso-abuse-on-fortios(s’ouvre dans un nouvel onglet)
Provenance
Chaque information de cette page provient des sources ci-dessous. Rien n’est rédigé par une IA.
- Fortinet (CVE record)
- Fortinet (CVE record) · 27 sept. 2026, 23:46 UTC · Analyseur patcharo-cve5/1.1.0
- CISA Known Exploited Vulnerabilities
- CISA Known Exploited Vulnerabilities · 27 sept. 2026, 23:42 UTC · Analyseur patcharo-kev/1.0.0
- NVD
- NVD · 27 sept. 2026, 23:44 UTC · Analyseur patcharo-nvd/1.0.0
- FIRST EPSS
- FIRST EPSS · 27 sept. 2026, 23:46 UTC · Analyseur patcharo-epss/1.0.0
Dernière vérification : 28 sept. 2026, 02:31 UTC