# CVE-2025-59718: FortiSwitchManager - Privilege Escalation

> Live exploitation tracking for CVE-2025-59718 by the CrowdSec Live Exploit Tracker, built from real-world attack data crowdsourced from CrowdSec's global network.

Page: https://tracker.crowdsec.net/cves/CVE-2025-59718

## Key facts

- **Exploitation phase:** Limited Exploitation. The vulnerability is known but shows very limited attacker interest or exploitation activity.
- **CVSS score:** 9.1
- **Public exploit available:** Yes
- **Affected products:** Fortinet FortiSwitchManager, Fortinet FortiProxy, Fortinet FortiOS
- **Weaknesses:** CWE-347 (Improper Verification of Cryptographic Signature)
- **Tags:** enterprise_software

## 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.

## CrowdSec analysis

[CVE-2025-59718](https://euvd.enisa.europa.eu/vulnerability/CVE-2025-59718) is a critical vulnerability in multiple Fortinet products, including FortiOS, FortiProxy, and FortiSwitchManager, that stems from improper verification of cryptographic signatures. This flaw allows unauthenticated attackers to bypass FortiCloud SSO login authentication by submitting a crafted SAML response, potentially granting unauthorized access to sensitive systems and data. Attackers exploiting this vulnerability could compromise network security, escalate privileges, and perform further malicious actions within affected environments.

CrowdSec has been tracking this vulnerability and its exploits since 17th of December 2025.

CrowdSec has not observed any significant exploitation activity targeting CVE-2025-59718 across its network. As a result, no community-driven trend analysis is available for this vulnerability at this time.

Attackers exploit this vulnerability by sending crafted SAMLResponse values via POST requests to the `/remote/saml/login` endpoint, attempting to bypass FortiCloud SSO authentication and gain administrative access.

## Timeline

- 2025-12-09: CVE Published. CVE-2025-59718 is published to NVD.
- 2025-12-16: CISA KEV. CVE-2025-59718 is added to the Known Exploited Vulnerabilities catalog by CISA.
- 2025-12-17: Rule Released. CrowdSec releases a rule to detect CVE-2025-59718 exploitation attempts against the CrowdSec Network.
- 2025-12-18: CrowdSec First Seen. CrowdSec observes in-the-wild exploitation of CVE-2025-59718 for the first time.
- 2025-12-23: CISA Remediation Deadline. Expiration of the CISA remediation deadline as described in [BOD 22-01](https://www.cisa.gov/news-events/directives/bod-22-01-reducing-significant-risk-known-exploited-vulnerabilities).

## References

- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-59718
- https://github.com/rix4uni/cvemapping/blob/main/2025/CVE-2025-59718/CVE-2025-59718.py

## Live exploitation data

The [Live Exploit Tracker page](https://tracker.crowdsec.net/cves/CVE-2025-59718) follows observed exploitation activity for CVE-2025-59718. [Request an API key](https://tracker.crowdsec.net/request-api-key) for full access to its exploitation timeline, attacking IP addresses and blocklists.