CVE-2026-70465

A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.11 may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute arbitrary code via malicious packets.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://fortiguard.fortinet.com/psirt/FG-IR-26-156	Vendor Advisory Mitigation

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:fortinet:forticlient::::::windows::*
	cpe:2.3:a:fortinet:forticlient::::::windows::*

History

23 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad de copia de búfer sin verificar el tamaño de la entrada (’desbordamiento de búfer clásico’) en Fortinet FortiClientWindows 7.4.0 hasta 7.4.3, FortiClientWindows 7.2.0 hasta 7.2.11 puede permitir a un atacante no autenticado en posición de alterar o elaborar respuestas DNS al host objetivo ejecutar código arbitrario a través de paquetes maliciosos.

Information

Published : 2026-08-12 12:19

Updated : 2026-10-24 15:10

NVD link : CVE-2026-70465

Mitre link : CVE-2026-70465

CVE.ORG link : CVE-2026-70465

JSON object : View

Products Affected

fortinet

forticlient

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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