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CVE-2026-126259

Quick assessment

Affected
Fortinet FortiOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Fortinet FortiOS 8.0.0、7.6.0 至 7.6.7、7.4.0 至 7.4.12 以及 7.2.0 至 7.2.13 版本中存在关键功能缺少身份验证的漏洞。若系统启用了 HA FGSP 配合 standalone-config-sync 或 autoscale 功能，未认证的攻击者可通过特制的 HA 数据包以超级管理员身份执行命令。

CVSS 9.0 · Critical
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I. Basic Information for CVE-2026-126259

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A missing authentication for critical function vulnerability in Fortinet FortiOS 8.0.0, FortiOS 7.6.0 through 7.6.7, FortiOS 7.4.0 through 7.4.12, FortiOS 7.2.0 through 7.2.13 may allow an unauthenticated attacker with HA FGSP + standalone-config-sync, or autoscale to execute command as super admin via crafted HA packets.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Fortinet FortiOS 8.0.0 cpe:2.3:o:fortinet:fortios:8.0.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-126259

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III. Intelligence Information for CVE-2026-126259

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Other References for CVE-2026-126259 (1)

Same Patch Batch · Fortinet · 2026-11-11 · 93 CVEs total

CVE-2026-126170 9.8 CRITICAL Fortinet 多产品输出编码缺陷致远程代码执行
CVE-2026-126148 9.8 CRITICAL FortiMail 8.0/7.6 存在 OS 命令注入漏洞
CVE-2026-126147 9.8 CRITICAL FortiMail 多版本路径遍历漏洞
CVE-2026-126254 9.6 CRITICAL Fortinet FortiOS 多版本存在数字截断漏洞
CVE-2026-126164 9.4 CRITICAL FortiMail 多版本 SQL 注入漏洞
CVE-2026-126263 9.4 CRITICAL FortiMail 7.4-8.0 存在 SQL 注入漏洞
CVE-2026-126253 9.3 CRITICAL Fortinet FortiOS 多版本认证绕过漏洞
CVE-2026-126262 9.3 CRITICAL FortiAnalyzer/Manager 多版本 OFTP 端口 SQL 注入漏洞
CVE-2026-126156 9.1 CRITICAL FortiMail 多版本用户控制密钥导致授权绕过漏洞
CVE-2026-126251 9.1 CRITICAL FortiAuthenticator 8.0/6.6 认证绕过漏洞
CVE-2026-126229 9.1 CRITICAL Fortinet 多版本授权绕过漏洞
CVE-2026-126155 9.1 CRITICAL FortiMail 多版本未授权认证漏洞
CVE-2026-126157 9.1 CRITICAL FortiMail 多版本未认证访问安全邮箱漏洞
CVE-2026-126150 9.1 CRITICAL FortiMail 多版本弱密码重置漏洞
CVE-2026-126257 9.0 CRITICAL FortiAuthenticator 6.6/8.0 硬编码密码漏洞
CVE-2026-126241 8.8 HIGH FortiAuthenticator 8.0.0-8.0.3/6.6.0-6.6.10 SQL 注入漏洞
CVE-2026-126175 8.8 HIGH Fortinet 多款产品 7.2/7.4/7.6 存在 SQL 注入漏洞
CVE-2026-126144 8.8 HIGH Fortinet 多产品 OS 命令注入漏洞
CVE-2026-126162 8.7 HIGH FortiMail 7.6/8.0 XML 注入漏洞
CVE-2026-126217 8.7 HIGH Fortinet 多款产品多版本存在认证绕过漏洞

Showing top 20 of 93 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: FortiOS
Same vendor: Fortinet
Same weakness: CWE-306