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CVE-2026-40688

CVSS 6.7 · High EPSS 0.18% · P39
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I. Basic Information for CVE-2026-40688

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An out-of-bounds write vulnerability [CWE-787] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.3, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4.0 through 7.4.11 may allow a remote privileged attacker to execute arbitrary code or command via crafted HTTP requests.
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
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
Fortinet FortiWeb 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiWeb是美国飞塔（Fortinet）公司的一款Web应用层防火墙，它能够阻断如跨站点脚本、SQL注入、Cookie中毒、schema中毒等攻击的威胁，保证Web应用程序的安全性并保护敏感的数据库内容。 Fortinet FortiWeb存在缓冲区错误漏洞，该漏洞源于越界写入，可能导致攻击者执行未授权代码或命令。以下版本受到影响：FortiWeb 8.0.0至8.0.3版本、FortiWeb 7.6.0至7.6.6版本和FortiWeb 7.4.0至7.4.11版本。
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

VendorProductAffected VersionsCPESubscribe
FortinetFortiWeb 8.0.0 ~ 8.0.3 cpe:2.3:a:fortinet:fortiweb:8.0.3:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-40688

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III. Intelligence Information for CVE-2026-40688

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Same Patch Batch · Fortinet · 2026-04-14 · 27 CVEs total

CVE-2026-398089.1 CRITICALFortinet FortiSandbox 操作系统命令注入漏洞
CVE-2026-398139.1 CRITICALFortinet FortiSandbox 安全漏洞
CVE-2026-398157.9 HIGHFortinet FortiDDoS-F 安全漏洞
CVE-2026-228287.3 HIGHFortinet FortiManager Cloud和Fortinet FortiAnalyzer Cloud 安全漏洞
CVE-2025-618486.8 MEDIUMFortinet多款产品 SQL注入漏洞
CVE-2026-237086.7 MEDIUMFortinet FortiSOAR PaaS和Fortinet FortiSOAR on-premise 授权问题漏洞
CVE-2026-398096.2 MEDIUMFortinet FortiClientEms 安全漏洞
CVE-2025-538476.2 MEDIUMFortinet FortiOS 访问控制错误漏洞
CVE-2026-221556.2 MEDIUMFortinet FortiSOAR PaaS和Fortinet FortiSOAR on-premise 安全漏洞
CVE-2026-256916.2 MEDIUMFortinet FortiSandbox 路径遍历漏洞
CVE-2026-398146.2 MEDIUMFortinet FortiWeb 安全漏洞
CVE-2026-225736.2 MEDIUMFortinet FortiSOAR PaaS和Fortinet FortiSOAR on-premise 路径遍历漏洞
CVE-2024-231045.4 MEDIUMFortinet FortiNDR 信息泄露漏洞
CVE-2026-217425.4 MEDIUMFortinet FortiSOAR PaaS和Fortinet FortiSOAR on-premise 安全漏洞
CVE-2025-686495.4 MEDIUMFortinet多款产品 路径遍历漏洞
CVE-2025-616245.4 MEDIUMFortinet多款产品 路径遍历漏洞
CVE-2026-398105.2 MEDIUMFortinet FortiClientEMS 安全漏洞
CVE-2025-618864.9 MEDIUMFortinet FortiSandbox 跨站脚本漏洞
CVE-2026-398114.4 MEDIUMFortinet FortiWeb 输入验证错误漏洞
CVE-2026-221544.4 MEDIUMFortinet FortiSOAR PaaS和Fortinet FortiSOAR on-premise 跨站脚本漏洞

Showing top 20 of 27 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: FortiWeb
Same vendor: Fortinet
Same weakness: CWE-787

V. Comments for CVE-2026-40688

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