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CVE-2025-53843

nvd nist
Published: Nov 18, 2025Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.6 / Impact: 5.9
Source: psirt@fortinet.com (Secondary)

Description

A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted packets

Affected (2)

Products: Fortinet: Fortios
Fortinet
1 product
Fortios
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Fortinet
Fortios
From 6.4.0 to 7.4.9
Fortios
From 7.6.0 to 7.6.4

Related CWEs

CWE-121
Stack-based Buffer Overflow
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

References (2)

Source: psirt@fortinet.com
Vendor Advisory
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e

Timeline

No history available yet.