Actively Exploited, CISA KEV
CVE-2025-64446: Fortinet FortiWeb Critical Vulnerability
Severity: Critical | CVSS 3.1: 9.8 | Published: 2025-11-14 | KEV Added: 2025-11-14
What is CVE-2025-64446?
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.
Technical Analysis
Weakness Classification
This vulnerability is classified as CWE-23.
Attack Vector Breakdown
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Confidentiality: High
- Integrity: High
- Availability: High
Impact Analysis
This vulnerability is exploitable over the network, meaning any system reachable via the internet or internal network is potentially at risk without physical access. The attack complexity is low, requires no special privileges, and needs no user interaction, making it straightforward to exploit at scale. Successful exploitation can result in full confidentiality breach (complete data disclosure), complete integrity compromise (data modification or code execution), total availability loss (denial of service).
Exploitation Probability (EPSS): 91.8% chance of exploitation in the next 30 days (100th percentile). This places the vulnerability in the highest risk tier, immediate action is critical.
Exploit Availability
Public exploit code or proof-of-concept is available for CVE-2025-64446. This significantly increases the risk of exploitation, as attackers can use or adapt existing exploit code rather than developing their own. A public exploit reference has been identified. Organizations should treat this as an urgent patching priority.
Is CVE-2025-64446 being exploited?
Yes. CVE-2025-64446 is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, restricted to CVEs with confirmed active exploitation in the wild. CISA added this vulnerability on 2025-11-14. Inclusion in KEV triggers the patching mandate under BOD 22-01 for U.S. federal civilian agencies, with a remediation deadline of 2025-11-21. Additionally, public exploit code is available, which lowers the barrier for attackers.
How to fix CVE-2025-64446
Upgrade FortiOS or the affected product firmware to the fixed version listed in the FortiGuard PSIRT advisory. For FortiGate devices, use the firmware upgrade path tool to determine the correct upgrade sequence. If immediate patching is not possible, apply the recommended workaround (e.g. disabling affected features, restricting management interface access). Check the Fortinet PSIRT Advisories page for the specific patch or update. CISA's Known Exploited Vulnerabilities catalog requires U.S. federal agencies to remediate this vulnerability by the due date shown below under Binding Operational Directive 22-01. Private organizations should treat KEV entries as priority-one patches because active exploitation has been confirmed in the wild.
Related Vulnerabilities
Other actively exploited vulnerabilities affecting FortiWeb or sharing the same weakness (CWE-23):
- CVE-2025-58034 (High 7.2) [same product], An Improper Neutralization of Special Elements used in an OS Command ('OS…
- CVE-2025-25257 (Unknown N/A) [same product], Fortinet FortiWeb contains a SQL injection vulnerability that may allow an…
- CVE-2026-25089 (Critical 9.8) [same vendor], A improper neutralization of special elements used in an os command ('os…
- CVE-2026-39808 (Critical 9.8) [same vendor], A improper neutralization of special elements used in an os command ('os…
- CVE-2026-34926 (Medium 6.7) [same CWE], A directory traversal vulnerability in the Apex One (on-premise) server could…
Frequently asked questions
Is CVE-2025-64446 critical?
CVE-2025-64446 has a CVSS 3.1 base score of 9.8, Critical severity. It should be treated as a priority patch, especially given the active exploitation confirmed by CISA. The availability of public exploit code further increases the urgency.
Is CVE-2025-64446 being actively exploited?
Yes, CISA added CVE-2025-64446 to the Known Exploited Vulnerabilities catalog on 2025-11-14. Inclusion in KEV means CISA has confirmed in-the-wild exploitation. Public exploit code has also been identified, making exploitation accessible to a broader range of threat actors.
How do I patch CVE-2025-64446?
Apply the security update from Fortinet for FortiWeb. Federal agencies must remediate by 2025-11-21 under BOD 22-01. Refer to the Fortinet PSIRT Advisories for the official patch.
What type of vulnerability is CVE-2025-64446?
CVE-2025-64446 is classified under CWE-23.
What is the CVSS score for CVE-2025-64446?
CVE-2025-64446 has a CVSS 3.1 base score of 9.8, classifying it as Critical severity. The attack vector is Network, attack complexity is Low, and no privileges are required.