Description
A improper verification of cryptographic signature vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.10, FortiProxy 7.2.0 through 7.2.14, FortiProxy 7.0.0 through 7.0.21, FortiSwitchManager 7.2.0 through 7.2.6, FortiSwitchManager 7.0.0 through 7.0.5 allows an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Fortinet FortiSwitchManager
Default version status: unaffected
7.2.0 to ≤ 7.2.6affected7.0.0 to ≤ 7.0.5affected
Fortinet FortiOS
Default version status: unaffected
7.6.0 to ≤ 7.6.3affected7.4.0 to ≤ 7.4.8affected7.2.0 to ≤ 7.2.11affected7.0.0 to ≤ 7.0.17affected
Fortinet FortiProxy
Default version status: unaffected
7.6.0 to ≤ 7.6.3affected7.4.0 to ≤ 7.4.10affected7.2.0 to ≤ 7.2.14affected7.0.0 to ≤ 7.0.21affected
References
- https://fortiguard.fortinet.com/psirt/FG-IR-25-647 ↗
- https://arcticwolf.com/resources/blog/arctic-wolf-observes-malicious-sso-logins-following-disclosure-cve-2025-59718-cve-2025-59719/ ↗
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-59718 ↗
- https://cert-portal.siemens.com/productcert/html/ssa-864900.html ↗