CVE-2026-21743
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I. Basic Information for CVE-2026-21743
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A missing authorization vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.6, FortiAuthenticator 6.5 all versions, FortiAuthenticator 6.4 all versions, FortiAuthenticator 6.3 all versions may allow a read-only user to make modification to local users via a file upload to an unprotected endpoint.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
Fortinet FortiAuthenticator 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiAuthenticator是美国飞塔（Fortinet）公司的一款集中式的用户身份管理解决方案。 Fortinet FortiAuthenticator 6.6.0版本至6.6.6版本、6.5所有版本、6.4所有版本和6.3所有版本存在安全漏洞，该漏洞源于缺少授权检查，可能导致只读用户通过文件上传修改本地用户。
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)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Fortinet | FortiAuthenticator | 6.6.0 ~ 6.6.6 | cpe:2.3:a:fortinet:fortiauthenticator:6.6.6:*:*:*:*:*:*:* |
II. Public POCs for CVE-2026-21743
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Fortinet · 2026-02-10 · 8 CVEs total
| CVE-2025-52436 | 7.9 HIGH | Fortinet FortiSandbox 跨站脚本漏洞 |
| CVE-2026-22153 | 7.5 HIGH | Fortinet FortiOS 安全漏洞 |
| CVE-2025-64157 | 6.7 MEDIUM | Fortinet FortiOS 格式化字符串错误漏洞 |
| CVE-2025-62676 | 6.4 MEDIUM | Fortinet FortiClientWindows 后置链接漏洞 |
| CVE-2025-68686 | 5.3 MEDIUM | Fortinet FortiOS 信息泄露漏洞 |
| CVE-2025-55018 | 5.2 MEDIUM | Fortinet FortiOS 环境问题漏洞 |
| CVE-2025-62439 | 3.8 LOW | Fortinet FortiOS 安全漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-862
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V. Comments for CVE-2026-21743
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