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CVE-2026-26035

Quick assessment

Affected
Fortinet FortiWeb
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 FortiWeb是美国Fortinet公司的一款Web应用防火墙产品。 Fortinet FortiWeb存在授权问题漏洞，该漏洞源于身份验证不当，可能导致远程未认证攻击者使用随机用户名和密码登录Fortiweb GUI/CLI。以下版本受到影响：8.0.0至8.0.2版本、7.6.0至7.6.6版本、7.4.0至7.4.11版本、7.2.0至7.2.12版本和7.0.0至7.0.12版本。

CVSS 8.8 · Critical EPSS 0.75% · P53

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 5

VendorProduct Version RangeStatus
Fortinet FortiWeb 8.0.0≤ 8.0.2 affected
7.6.0≤ 7.6.6 affected
7.4.0≤ 7.4.11 affected
7.2.0≤ 7.2.12 affected
7.0.0≤ 7.0.12 affected
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I. Basic Information for CVE-2026-26035

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An Improper Authentication vulnerability [CWE-287] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.6, FortiWeb 7.4.0 through 7.4.11, FortiWeb 7.2.0 through 7.2.12, FortiWeb 7.0.0 through 7.0.12 may allow a remote unauthenticated attacker to login into the Fortiweb GUI/CLI with a random username and password
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
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Fortinet FortiWeb 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiWeb是美国Fortinet公司的一款Web应用防火墙产品。 Fortinet FortiWeb存在授权问题漏洞，该漏洞源于身份验证不当，可能导致远程未认证攻击者使用随机用户名和密码登录Fortiweb GUI/CLI。以下版本受到影响：8.0.0至8.0.2版本、7.6.0至7.6.6版本、7.4.0至7.4.11版本、7.2.0至7.2.12版本和7.0.0至7.0.12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

Vendor Product Affected Versions CPE Subscribe
Fortinet FortiWeb 8.0.0 ~ 8.0.2 cpe:2.3:a:fortinet:fortiweb:8.0.2:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-26035

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III. Intelligence Information for CVE-2026-26035

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Vendor Advisories for CVE-2026-26035 (1)

Same Patch Batch · Fortinet · 2026-08-12 · 7 CVEs total

CVE-2026-70465 7.3 HIGH Fortinet forticlientwindows 缓冲区错误漏洞
CVE-2026-70468 7.3 HIGH Fortinet fortimanager 授权问题漏洞
CVE-2026-71407 5.1 MEDIUM Fortinet FortiOS 缓冲区错误漏洞
CVE-2026-71408 5.0 MEDIUM Fortinet FortiOS 资源管理错误漏洞
CVE-2026-70466 4.8 MEDIUM Fortinet FortiWeb 输入验证错误漏洞
CVE-2026-70467 3.4 LOW Fortinet fortisiem 服务端请求伪造漏洞

IV. Related Vulnerabilities

Same product: FortiWeb
Same vendor: Fortinet
Same weakness: CWE-287

V. Comments for CVE-2026-26035

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