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CVE-2025-53844: Execute unauthorized code or commands in Fortinet FortiOS

0
High
VulnerabilityCVE-2025-53844cvecve-2025-53844
Published: Tue May 12 2026 (05/12/2026, 16:54:10 UTC)
Source: CVE Database V5
Vendor/Project: Fortinet
Product: 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

AILast updated: 05/12/2026, 20:09:15 UTC

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.

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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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