Low

Authentication Lockout Bypass via Race Condition in FortiAnalyzer and FortiManager

IdentifiersCVE-2026-22629CWE-307· Improper Restriction of Excessive…

CVE-2026-22629 is an improper restriction of excessive authentication attempts vulnerability in Fortinet FortiAnalyzer, FortiAnalyzer Cloud, FortiManager, and FortiManager Cloud. According to the provided content, affected versions include FortiAnalyzer 7.6.0 through 7.6.4 and all versions in the 7.4, 7.2, 7.0, and 6.4 branches; FortiAnalyzer Cloud 7.6.0 through 7.6.4 and all versions in the 7.4, 7.2, 7.0, and 6.4 branches; FortiManager 7.6.0 through 7.6.4 and all versions in the 7.4, 7.2, 7.0, and 6.4 branches; and FortiManager Cloud 7.6.0 through 7.6.4 and all versions in the 7.4, 7.2, 7.0, and 6.4 branches. The flaw is classified as CWE-307 and stems from a race condition that allows an attacker to bypass brute-force protections and avoid intended authentication lockout behavior. The content indicates exploitation is possible by abusing a timing window in the authentication process, which increases practical attack complexity but may still permit repeated password-guessing attempts without triggering normal excessive-attempt restrictions.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can allow an attacker to defeat account lockout or brute-force throttling controls and continue credential-guessing attempts against exposed authentication interfaces. This materially increases the likelihood of account compromise where weak, reused, or previously exposed credentials are in use. The direct impact described in the content is the ability to brute-force credentials without triggering expected lockouts; downstream impact may include unauthorized access to administrative or management functions available to the compromised account.

Mitigation

If you can’t patch tonight, do this now.

Until patches are fully deployed, reduce exposure of management interfaces to trusted administrative networks only, enforce strong passwords and MFA where available, monitor authentication logs for high-rate or concurrent login attempts indicative of race-condition-assisted brute forcing, and consider additional external rate limiting or access controls in front of affected login surfaces. Review accounts for weak credentials and rotate passwords for privileged users. The content specifically notes monitoring for anomalous authentication activity as part of Fortinet’s recommended response.

Remediation

Patch, then assume compromise.

Apply Fortinet vendor updates for CVE-2026-22629 on all affected FortiAnalyzer, FortiAnalyzer Cloud, FortiManager, and FortiManager Cloud deployments. Because the provided content does not include fixed version numbers, administrators should consult the relevant FortiGuard PSIRT advisory for this CVE and upgrade to the vendor-designated remediated release for each affected product branch. Verify installed versions against Fortinet’s affected/fixed version matrix and prioritize internet-exposed management systems.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

FortinetFortianalyzeroperating_system

FortinetFortianalyzer Cloudapplication

FortinetFortianalyzercloudapplication

FortinetFortimanageroperating_system

FortinetFortimanager Cloudapplication

FortinetFortimanagercloudapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

2 SOURCESView more in app

cyber security newsNews

Mar 10, 2026

Fortinet Security Update - Patch for Multiple Vulnerabilities That Enable Malicious Command Execution

Authentication lockout bypass via race condition allowing brute-force attempts without triggering lockouts in FortiAnalyzer/FortiManager (including Cloud).

What this page doesn’t show

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity1