Fortinet FortiWeb Relative Path Traversal Remote Code Execution Vulnerability Urgent Security Advisory (CVE-2025-64446)
Executive & SecOps Summary
SECOPS ASSESSMENTFortinet FortiWeb versions 8.0.0 through 8.0.1, 7.6.0 through 7.6.4, 7.4.0 through 7.4.9, 7.2.0 through 7.2.11, and 7.0.0 through 7.0.11
Unauthenticated remote attackers can execute arbitrary administrative commands on the system via crafted HTTP or HTTPS requests
Immediately upgrade to the official patched versions (8.0.2, 7.6.5, 7.4.10, 7.2.12, 7.0.12 or higher)
Affected Products & Version Scope
Remediation & Live Workaround Commands
PATCH & WORKAROUND1. Official Patch & Version Upgrade Commands
Apply the official firmware updates immediately to mitigate this vulnerability. Refer to the following CLI commands to perform the upgrade.
# Verify current FortiWeb version
get system status
# Restore/Upgrade firmware image via TFTP
# (Target versions: 8.0.2 / 7.6.5 / 7.4.10 / 7.2.12 / 7.0.12 or higher)
execute restore image tftp <firmware_image_name> <tftp_server_ip>2. Temporary Workaround & Hardening Configuration
If immediate patching is not feasible, restrict access to the FortiWeb management interface (HTTPS/SSH) by configuring trusted hosts to allow access only from authorized administrative subnets.
# Restrict administrative access to trusted IPs via CLI
config system admin
edit 'admin'
set trusthost1 192.168.10.0 255.255.255.0
set trusthost2 10.10.10.50 255.255.255.255
next
end3. Log Audit & IoC Verification Commands
Inspect FortiWeb system and traffic logs for suspicious path traversal patterns ('../') or unauthorized administrative commands.
# Check FortiWeb traffic and event logs via CLI
show log traffic
show log event
# Audit external reverse proxy or web server logs for traversal attempts (Bash)
grep -Ei '(\.\./|\.\.\\)' /var/log/nginx/access.log | grep -E 'HTTP/1\.'Block Exploits Instantly with Managed Virtual Patching Rules
Can't patch production immediately? Deploy managed WAF rules at the edge to intercept RCE, SQLi, and deserialization payloads before they hit your origin server.
Technical Root Cause & Exploitation Mechanics
1. Vulnerability Overview & Root Cause
This vulnerability (CVE-2025-64446) is a critical relative path traversal flaw (CWE-23) in Fortinet FortiWeb web application firewalls. The root cause lies in the insufficient validation of user-supplied input within HTTP/HTTPS request parameters or headers. This allows an attacker to bypass directory restrictions and access restricted system files or execution paths.
2. Exploitation Mechanics & Attack Scenario
An attacker can exploit this vulnerability by sending a specially crafted HTTP/HTTPS request containing relative path traversal sequences (such as '../'). By manipulating the path, the attacker bypasses authentication mechanisms and directly interacts with internal administrative command execution interfaces. With a CVSS score of 9.8 and active exploitation confirmed (CISA KEV), this vulnerability requires no privileges or user interaction to achieve full Remote Code Execution (RCE).
3. Infrastructure & Business Impact
As FortiWeb acts as the primary line of defense for enterprise web applications, a compromise of this appliance is catastrophic. Attackers gaining administrative control can decrypt and intercept sensitive web traffic, steal credentials, or use the compromised WAF as a pivot point to launch lateral movement attacks across the internal corporate network, leading to potential ransomware deployment and severe business disruption.
Official Vendor Advisories & References
A relative path traversal vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.1, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.9, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.0.11 may allow an attacker to execute administrative commands on the system via crafted HTTP or HTTPS requests.
Frequently Asked SecOps Questions (CVE-2025-64446)
FAQQ1. How critical is CVE-2025-64446 and is it actively exploited in the wild?
CVE-2025-64446 is rated CVSS 9.8 (CRITICAL) with a 30-day EPSS exploitation probability of 91.1%. It is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, requiring immediate emergency remediation.
Q2. Which vendors and products are affected by CVE-2025-64446?
Primary impacted vendors include fortinet across fortiweb. Scope summary: FortiWeb 8.0.0 to 8.0.1, 7.6.0 to 7.6.4, 7.4.0 to 7.4.9, 7.2.0 to 7.2.11, 7.0.0 to 7.0.11
Q3. What temporary mitigations or workarounds exist for CVE-2025-64446 before patching?
[Mitigation] Immediately upgrade to the official patched versions (8.0.2, 7.6.5, 7.4.10, 7.2.12, 7.0.12 or higher) Follow the CLI remediation commands and interactive SecOps checklist on this page to restrict exposure prior to your maintenance window.
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