Fortiweb
CVE-2026-24017
HIGH
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessSend crafted requests to authentication endpoint
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ExploitBypass rate-limit protection mechanism
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ExecutionConduct brute-force password attack
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ImpactGain unauthorized admin access
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Interaction frequency control
|
| Exploitation Conditions | FortiWeb versions 7.0.0–8.0.2 with authentication rate-limiting enabled. Attacker must craft requests to evade rate-limit detection; success depends on target password complexity and attacker computational resources. No authentication required for initial exploit attempt. |
| Impact | CVSS 8.1 (HIGH). Attack vector: Network. Complexity: High. Privileges required: None. User interaction: None. Exploitation no authentication required. Exploitable via remote/network. |
| Exploit ScenarioDerived | A remote attacker without authentication could exploit this vulnerability to a remote unauthenticated attacker to bypass the authentication rate-limit via cr. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Fortinet FortiWeb versions 7.0 through 8.0.2 contain an improper rate-limiting flaw that allows unauthenticated remote attackers to bypass authentication attempt restrictions through crafted requests. This vulnerability enables attackers to conduct brute-force password attacks against FortiWeb instances with reduced constraints, with success dependent on attacker resources and target password complexity. No patch is currently available for affected versions.
Earlier versions of this analysis (1)
An Improper Control of Interaction Frequency vulnerability [CWE-799] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.5, FortiWeb 7.4.0 through 7.4.10, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.0.11 may allow a remote unauthenticated attacker to bypass the authentication rate-limit via crafted requests. [CVSS 8.1 HIGH]
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
Affects your stack
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Technical ContextAI · show details
Classified as CWE-799 (Improper Control of Interaction Frequency). Affects Fortiweb. An Improper Control of Interaction Frequency vulnerability [CWE-799] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.5, FortiWeb 7.4.0 through 7.4.10, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.0.11 may allow a remote unauthenticated attacker to bypass the authentication rate-limit via crafted requests. The success of the attack depends on the attacker's resources and the password target complexity.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
An Improper Control of Interaction Frequency vulnerability [CWE-799] vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.5, FortiWeb 7.4.0 through 7.4.10, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.0.11 may allow a remote unauthenticated attacker to bypass the authentication rate-limit via crafted requests. The success of the attack depends on the attacker's resources and the password target complexity.
Executive ViewAI
FortiWeb instances across versions 7.0 through 8.0.2 are vulnerable to authentication bypass attacks that could allow unauthorized access to protected applications. An attacker can circumvent rate-limiting controls designed to prevent brute-force attacks, creating a direct path to credential compromise and unauthorized system access without needing to patch immediately.
Implement Web Application Firewall (WAF) rules to detect and throttle requests with invalid credentials; deploy network-based rate limiting upstream of FortiWeb; enforce multi-factor authentication on all protected applications; enable detailed authentication logging and configure alerts for failed login spikes; consider temporarily disabling authentication rate-limit feature if not critical and monitor manually; segment FortiWeb instances behind additional authentication proxies or VPNs; disable public-facing authentication endpoints where possible and require VPN access.
Threat Intelligence Overview
NVD
CVE.org
EPSS
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Affected Products (CPE)CVE.org
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A improper handling of parameters in Fortinet FortiWeb versions 7.6.3 and below, versions 7.4.7 and below, versions 7.2.
Arbitrary file write and folder deletion in Fortinet FortiManager, FortiOS, and FortiProxy is possible via a path traver
A buffer underwrite ('buffer underflow') vulnerability in the administrative interface of Fortinet FortiOS version 7.2.0
An improper neutralization of input during web page generation in FortiWeb GUI interface 6.3.0 through 6.3.7 and version
Authentication bypass in Fortinet FortiWeb (versions 7.0.0-7.0.12, 7.2.0-7.2.12, 7.4.0-7.4.11, 7.6.0-7.6.6, and 8.0.0-8.
Authentication bypass in Fortinet FortiWeb 8.0.0, 7.6.0-7.6.4, and 7.4.0-7.4.9 allows unauthenticated remote attackers t
Multiple vulnerabilities in the authentication mechanism of confd in FortiWeb versions 6.4.1, 6.4.0, 6.3.0 through 6.3.1
A stack-based buffer overflow in Fortinet FortiWeb version 6.4.0, version 6.3.15 and below, 6.2.5 and below allows attac
Privilege escalation via path traversal affects multiple Fortinet appliances - FortiWeb (6.4, 7.0, 7.2, 7.4.0-7.4.4, 7.6
Cross-site request forgery (CSRF) vulnerability in Fortinet FortiWeb before 5.5.3 allows remote attackers to hijack the
GitHub PoC
Exploit-DB