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CVE-2026-24858

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CVE-2026-24858

Published: Jan 27, 2026

Modified: May 12, 2026

PUBLISHED

CVSS v3.1

9.4

CRITICAL

Description

An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] vulnerability in Fortinet FortiAnalyzer 7.6.0 through 7.6.5, FortiAnalyzer 7.4.0 through 7.4.9, FortiAnalyzer 7.2.0 through 7.2.11, FortiAnalyzer 7.0.0 through 7.0.15, FortiManager 7.6.0 through 7.6.5, FortiManager 7.4.0 through 7.4.9, FortiManager 7.2.0 through 7.2.11, FortiManager 7.0.0 through 7.0.15, FortiOS 7.6.0 through 7.6.5, FortiOS 7.4.0 through 7.4.10, FortiOS 7.2.0 through 7.2.12, FortiOS 7.0.0 through 7.0.18, FortiProxy 7.6.0 through 7.6.4, FortiProxy 7.4.0 through 7.4.12, FortiProxy 7.2.0 through 7.2.15, FortiProxy 7.0.0 through 7.0.22, 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 an attacker with a FortiCloud account and a registered device to log into other devices registered to other accounts, if FortiCloud SSO authentication is enabled on those devices.

VendorProductVersions

Fortinet

FortiOS

affected
7.6.0 - <= 7.6.5
affected
7.4.0 - <= 7.4.10
affected
7.2.0 - <= 7.2.12
affected
7.0.0 - <= 7.0.18

Fortinet

FortiManager

affected
7.6.0 - <= 7.6.5
affected
7.4.0 - <= 7.4.9
affected
7.2.0 - <= 7.2.11
affected
7.0.0 - <= 7.0.15

Fortinet

FortiAnalyzer

affected
7.6.0 - <= 7.6.5
affected
7.4.0 - <= 7.4.9
affected
7.2.0 - <= 7.2.11
affected
7.0.0 - <= 7.0.15

Fortinet

FortiProxy

affected
7.6.0 - <= 7.6.4
affected
7.4.0 - <= 7.4.12
affected
7.2.0 - <= 7.2.15
affected
7.0.0 - <= 7.0.22

Fortinet

FortiWeb

affected
8.0.0 - <= 8.0.3
affected
7.6.0 - <= 7.6.6
affected
7.4.0 - <= 7.4.11

Weaknesses (CWE)

CWE-288

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

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