CVE-2025-53844: Execute unauthorized code or commands in Fortinet FortiOS
A out-of-bounds write 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 allows attacker to execute unauthorized code or commands via specially crafted packets.
AI Analysis
Technical Summary
This vulnerability in Fortinet FortiOS arises from an out-of-bounds write condition present in versions 7.6.0 to 7.6.3, 7.4.0 to 7.4.8, and 7.2.0 to 7.2.11. Exploitation requires an attacker with low privileges and no user interaction, leveraging specially crafted packets to execute unauthorized code or commands on the affected system. The vulnerability impacts confidentiality, integrity, and availability, as indicated by the CVSS vector. Fortinet has released an official fix to remediate this issue.
Potential Impact
Successful exploitation can lead to full compromise of the affected FortiOS device, allowing unauthorized code execution and potentially complete control over the system. This impacts the confidentiality, integrity, and availability of the device and its managed network traffic. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official patch is available from Fortinet to remediate this vulnerability. It is strongly recommended to apply the vendor-provided updates promptly to affected FortiOS versions. Since this is not a cloud service, remediation depends on customer action to update their devices.
CVE-2025-53844: Execute unauthorized code or commands in Fortinet FortiOS
Description
A out-of-bounds write 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 allows attacker to execute unauthorized code or commands via specially crafted packets.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Fortinet FortiOS arises from an out-of-bounds write condition present in versions 7.6.0 to 7.6.3, 7.4.0 to 7.4.8, and 7.2.0 to 7.2.11. Exploitation requires an attacker with low privileges and no user interaction, leveraging specially crafted packets to execute unauthorized code or commands on the affected system. The vulnerability impacts confidentiality, integrity, and availability, as indicated by the CVSS vector. Fortinet has released an official fix to remediate this issue.
Potential Impact
Successful exploitation can lead to full compromise of the affected FortiOS device, allowing unauthorized code execution and potentially complete control over the system. This impacts the confidentiality, integrity, and availability of the device and its managed network traffic. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official patch is available from Fortinet to remediate this vulnerability. It is strongly recommended to apply the vendor-provided updates promptly to affected FortiOS versions. Since this is not a cloud service, remediation depends on customer action to update their devices.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- fortinet
- Date Reserved
- 2025-07-10T08:53:33.015Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
Threat ID: 6a03652ecbff5d861008c149
Added to database: 5/12/2026, 5:36:46 PM
Last enriched: 5/12/2026, 8:09:15 PM
Last updated: 5/13/2026, 4:09:54 AM
Views: 11
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