CVE-2026-24858
- State
- Published
- Severity
- 9.4 Critical
- Published
- Jan 27, 2026
- Updated
- Jun 9, 2026
- Reserved
- Jan 27, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.4 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C | fortinet |
Weaknesses
- CWE-288 Improper access control
Affected Products
| Product | Versions |
|---|---|
FortiWebFortinet |
|
FortiNAC-FFortinet |
|
FortiOSFortinet |
|
FortiAnalyzerFortinet |
|
FortiProxyFortinet |
|
FortiManagerFortinet |
|
References
- https://fortiguard.fortinet.com/psirt/FG-IR-26-060
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-24858government-resource
- https://www.fortinet.com/blog/psirt-blogs/analysis-of-sso-abuse-on-fortiosvendor-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-975644.html
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