AEGLIX vulnerability intelligence
CVE-2025-59718
CRITICAL · CVSS 9.8 · Analyzed
Published: 2025-12-09 · Updated: 2026-06-17 · Source: NVD
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Vulnerability overview
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.
Severity and scoring
- CVSS score
- 9.8 · CRITICAL
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-347
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Fortinet · Multiple Products
- Added to catalog
- 2025-12-16
- Required action
- 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 remediation due date
- 2025-12-23
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
From (inclusive): 7.0.0
Before (exclusive): 7.0.22
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
From (inclusive): 7.2.0
Before (exclusive): 7.2.15
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
From (inclusive): 7.4.0
Before (exclusive): 7.4.11
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
From (inclusive): 7.6.0
Before (exclusive): 7.6.4
cpe:2.3:a:fortinet:fortiswitchmanager:*:*:*:*:*:*:*:*
From (inclusive): 7.0.0
Before (exclusive): 7.0.6
cpe:2.3:a:fortinet:fortiswitchmanager:*:*:*:*:*:*:*:*
From (inclusive): 7.2.0
Before (exclusive): 7.2.7
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
From (inclusive): 7.0.0
Before (exclusive): 7.0.18
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
From (inclusive): 7.2.0
Before (exclusive): 7.2.12
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
From (inclusive): 7.4.0
Before (exclusive): 7.4.9
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
From (inclusive): 7.6.0
Before (exclusive): 7.6.4
cpe:2.3:o:siemens:ruggedcom_ape1808_firmware:-:*:*:*:*:*:*:*
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://fortiguard.fortinet.com/psirt/FG-IR-25-647
Vendor Advisory
- https://arcticwolf.com/resources/blog/arctic-wolf-observes-malicious-sso-logins-following-disclosure-cve-2025-59718-cve-2025-59719/
Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-864900.html
Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-59718
US Government Resource