CVE-2020-5665

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

14/12/2020

Last modified:

21/07/2021

Description

Improper check or handling of exceptional conditions in MELSEC iQ-F series FX5U(C) CPU unit firmware version 1.060 and earlier allows an attacker to cause a denial-of-service (DoS) condition on program execution and communication by sending a specially crafted ARP packet.

Impact

Vector 3.x

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.40 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.40

Severity 3.x

HIGH

Vector 2.0

AV:A/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 3.30 LOW
Vector: AV:A/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0

3.30

Severity 2.0

LOW

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:mitsubishielectric:melsec_iq-f_fx5u_cpu_firmware::::::::		1.060 (including)
cpe:2.3:h:mitsubishielectric:melsec_iq-f_fx5u_cpu:-:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2020-5665

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools