CVE-2025-53847
Received
Received - Intake
Missing Authentication in FortiOS Allows Unauthorized Code Execution
Publication date: 2026-04-14
Last updated on: 2026-04-20
Assigner: Fortinet, Inc.
Description
Description
A missing authentication for critical function vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiOS 6.4 all versions, FortiOS 6.2.9 through 6.2.17 allows attacker to execute unauthorized code or commands via specially crafted packets.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| fortinet | fortios | From 7.6.0 (inc) to 7.6.4 (exc) |
| fortinet | fortios | From 7.2.0 (inc) to 7.2.12 (exc) |
| fortinet | fortios | From 7.4.0 (inc) to 7.4.9 (exc) |
| fortinet | fortios | From 6.2.9 (inc) to 7.0.18 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-306 | The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. |
Attack-Flow Graph
AI Powered Q&A
How can this vulnerability impact me? :
The impact of this vulnerability is that an attacker can execute unauthorized commands or code on the affected FortiOS devices without proper authentication. This could lead to unauthorized control or manipulation of the device, potentially compromising the security and integrity of the network.
Can you explain this vulnerability to me?
This vulnerability is a missing authentication for a critical function in multiple versions of Fortinet FortiOS. It allows an attacker to execute unauthorized code or commands by sending specially crafted packets to the affected system.
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