CVE-2025-59718
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I. Basic Information for CVE-2025-59718
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
密码学签名的验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Fortinet多款产品 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiOS等都是美国飞塔（Fortinet）公司的产品。Fortinet FortiOS是一套专用于FortiGate网络安全平台上的安全操作系统。Fortinet FortiProxy是一种安全的网络代理，通过结合多种检测技术，如Web过滤、DNS过滤、DLP、反病毒、入侵防御和高级威胁保护，可以保护员工免受网络攻击。FortiProxy有助于减少带宽需求，并通过内容和视频缓存优化网络。Fortinet FortiSwitchManager是一款网络交换机管理工具，旨在帮助组织管理
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Fortinet | FortiSwitchManager | 7.2.0 ~ 7.2.6 | cpe:2.3:a:fortinet:fortiswitchmanager:7.2.6:*:*:*:*:*:*:* | |
| Fortinet | FortiOS | 7.6.0 ~ 7.6.3 | cpe:2.3:o:fortinet:fortios:7.6.3:*:*:*:*:*:*:* | |
| Fortinet | FortiProxy | 7.6.0 ~ 7.6.3 | cpe:2.3:a:fortinet:fortiproxy:7.6.3:*:*:*:*:*:*:* |
II. Public POCs for CVE-2025-59718
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | CVE-2025-59718 | https://github.com/Ashwesker/Blackash-CVE-2025-59718 | POC Details |
| 2 | Fortinet announced two closely related authentication‑bypass vulnerabilities on 9 December 2025. Both flaws involve improper verification of cryptographic signatures (CWE‑347) in the handling of SAML responses for the FortiCloud SSO login feature. | https://github.com/exfil0/CVE-2025-59718-PoC | POC Details |
| 3 | PoC para determinar si Fortinet es vulnerable a CVE-2025-59718 / CVE-2025-59719 | https://github.com/moften/CVE-2025-59718-Fortinet-Poc | POC Details |
| 4 | CVE-2025-59718 | https://github.com/Ashwesker/Ashwesker-CVE-2025-59718 | POC Details |
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Same Patch Batch · Fortinet · 2025-12-09 · 17 CVEs total
| CVE-2025-59719 | 9.1 CRITICAL | Fortinet FortiWeb 数据伪造问题漏洞 |
| CVE-2025-60024 | 7.7 HIGH | Fortinet FortiVoice 路径遍历漏洞 |
| CVE-2025-64447 | 7.1 HIGH | Fortinet FortiWeb 安全漏洞 |
| CVE-2025-53949 | 7.0 HIGH | Fortinet FortiSandbox 操作系统命令注入漏洞 |
| CVE-2025-53679 | 6.9 MEDIUM | Fortinet FortiSandbox 操作系统命令注入漏洞 |
| CVE-2025-64156 | 6.8 MEDIUM | Fortinet FortiVoice SQL注入漏洞 |
| CVE-2025-64153 | 6.7 MEDIUM | Fortinet FortiExtender 操作系统命令注入漏洞 |
| CVE-2025-59808 | 6.5 MEDIUM | Fortinet FortiSOAR PaaS和Fortinet FortiSOAR on-premise 安全漏洞 |
| CVE-2025-54838 | 6.4 MEDIUM | Fortinet FortiPortal 安全漏洞 |
| CVE-2024-47570 | 6.3 MEDIUM | Fortinet多款产品 日志信息泄露漏洞 |
| CVE-2025-59810 | 6.2 MEDIUM | Fortinet FortiSOAR PaaS和Fortinet FortiSOAR on-premise 访问控制错误漏洞 |
| CVE-2025-62631 | 5.3 MEDIUM | Fortinet FortiOS 代码问题漏洞 |
| CVE-2025-54353 | 5.3 MEDIUM | Fortinet FortiSandbox 跨站脚本漏洞 |
| CVE-2025-64471 | 4.4 MEDIUM | Fortinet FortiWeb 安全漏洞 |
| CVE-2025-59923 | 2.6 LOW | Fortinet FortiAuthenticator 访问控制错误漏洞 |
| CVE-2025-57823 | 2.6 LOW | Fortinet FortiAuthenticator 安全漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-347
- CVE-2026-42193
Plunk: SNS webhook forgery - CVE-2026-44497
ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type - CVE-2026-41669
Admidio: SAML Signature Validation Result Ignored — Forged A - CVE-2026-7689
Dolibarr ERP CRM Online Signature security.lib.php dol_verif - CVE-2026-33467
Improper Verification of Cryptographic Signature in Elastic
V. Comments for CVE-2025-59718
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