CVE-2026-24858
Description
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.
How to fix
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: Jan 30, 2026- fortinet fortianalyzer7.4.10, 7.6.6 or later
- fortinet fortimanager7.4.10, 7.6.6 or later
- fortinet fortinac-f7.6.6 or later
- fortinet fortios7.4.11, 7.6.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fortinet fortianalyzer | 7.0.0 ≤ v ≤ 7.0.15, 7.2.0 ≤ v ≤ 7.2.11, 7.4.0 ≤ v < 7.4.10, 7.6.0 ≤ v < 7.6.6 | 7.4.10, 7.6.6 |
| fortinet fortimanager | 7.0.0 ≤ v ≤ 7.0.15, 7.2.0 ≤ v ≤ 7.2.11, 7.4.0 ≤ v < 7.4.10, 7.6.0 ≤ v < 7.6.6 | 7.4.10, 7.6.6 |
| fortinet fortinac-f | 7.6.3 ≤ v < 7.6.6 | 7.6.6 |
| fortinet fortiproxy | 7.0.0 ≤ v ≤ 7.0.22, 7.2.0 ≤ v ≤ 7.2.15, 7.4.0 ≤ v ≤ 7.4.12, 7.6.0 ≤ v ≤ 7.6.4 | — |
| fortinet fortiweb | 7.4.0 ≤ v ≤ 7.4.11, 7.6.0 ≤ v ≤ 7.6.6, 8.0.0 ≤ v ≤ 8.0.3 | — |
| fortinet fortios | 7.0.0 ≤ v ≤ 7.0.18, 7.2.0 ≤ v ≤ 7.2.12, 7.4.0 ≤ v < 7.4.11, 7.6.0 ≤ v < 7.6.6 | 7.4.11, 7.6.6 |
| siemens ruggedcom_ape1808_firmware | No range specified | — |
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