Fortinet FortiAnalyzer Authentication Lockout Bypass via Race Condition (FG-IR-26-079)

low Nessus Plugin ID 301724

Synopsis

Fortinet Firewall is missing one or more security-related updates.

Description

The version of FortiAnalyzer installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-26-079 advisory.

- An improper restriction of excessive authentication attempts vulnerability in Fortinet FortiAnalyzer 7.6.0 through 7.6.4, FortiAnalyzer 7.4 all versions, FortiAnalyzer 7.2 all versions, FortiAnalyzer 7.0 all versions, FortiAnalyzer 6.4 all versions, FortiAnalyzer Cloud 7.6.2, FortiAnalyzer Cloud 7.4.1 through 7.4.7, FortiAnalyzer Cloud 7.2.1 through 7.2.10, FortiAnalyzer Cloud 7.0.1 through 7.0.14, FortiAnalyzer Cloud 6.4 all versions, FortiManager 7.6.0 through 7.6.4, FortiManager 7.4 all versions, FortiManager 7.2 all versions, FortiManager 7.0 all versions, FortiManager 6.4 all versions, FortiManager Cloud 7.6.2 through 7.6.3, FortiManager Cloud 7.4.1 through 7.4.7, FortiManager Cloud 7.2.1 through 7.2.10, FortiManager Cloud 7.0.1 through 7.0.14, FortiManager Cloud 6.4 all versions may allow an attacker to bypass bruteforce protections via exploitation of race conditions. The latter raises the complexity of practical exploitation. (CVE-2026-22629)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

For 6.4.x / 7.0.x / 7.2.x / 7.4.x, see vendor advisory. For 7.6.x, upgrade to FortiAnalyzer version 7.6.5 or later.

See Also

https://www.fortiguard.com/psirt/FG-IR-26-079

Plugin Details

Severity: Low

ID: 301724

File Name: fortianalyzer_FG-IR-26-079.nasl

Version: 1.1

Type: local

Family: Firewalls

Published: 3/10/2026

Updated: 3/10/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 1.9

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2026-22629

CVSS v3

Risk Factor: Low

Base Score: 3.7

Temporal Score: 3.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:fortinet:fortianalyzer

Required KB Items: Host/Fortigate/model, Host/Fortigate/version

Exploit Ease: No known exploits are available

Patch Publication Date: 3/10/2026

Vulnerability Publication Date: 3/10/2026

Reference Information

CVE: CVE-2026-22629