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CVE-2026-84390

Quick assessment

Affected
Fortinet FortiMonitorOnSight
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 FortiMonitorOnSight是美国Fortinet公司的一款实时监控网络与设备运行状态的系统软件。 Fortinet FortiMonitorOnSight 7.2.4版本至7.2.7版本和7.2.0版本至7.2.2版本存在信息泄露漏洞，该漏洞源于源代码中包含敏感信息，可能导致访问控制不当。

CVSS 9.6 · Critical EPSS 0.52% · P43

Possible ATT&CK Techniques 1 AI

T1552 · Unsecured Credentials

Affected Version Matrix 2

VendorProduct Version RangeStatus
Fortinet FortiMonitorOnSight 7.2.4≤ 7.2.7 affected
7.2.0≤ 7.2.2 affected
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I. Basic Information for CVE-2026-84390

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A inclusion of sensitive information in source code vulnerability in Fortinet FortiMonitorOnSight 7.2.4 through 7.2.7, FortiMonitorOnSight 7.2.0 through 7.2.2 may allow attacker to improper access control via <insert attack vector here>
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
通过源代码导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Fortinet FortiMonitorOnSight 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiMonitorOnSight是美国Fortinet公司的一款实时监控网络与设备运行状态的系统软件。 Fortinet FortiMonitorOnSight 7.2.4版本至7.2.7版本和7.2.0版本至7.2.2版本存在信息泄露漏洞，该漏洞源于源代码中包含敏感信息，可能导致访问控制不当。
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 FortiMonitorOnSight 7.2.4 ~ 7.2.7 cpe:2.3:a:fortinet:fortimonitoronsight:7.2.7:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-84390

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III. Intelligence Information for CVE-2026-84390

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Vendor Advisories for CVE-2026-84390 (1)

IV. Related Vulnerabilities

Same vendor: Fortinet
Same weakness: CWE-540

V. Comments for CVE-2026-84390

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