CVE-2018-4850

Severity CVSS v4.0:

Pending analysis

Type:

CWE-20 Input Validation

Publication date:

16/05/2018

Last modified:

17/06/2026

Description

A vulnerability has been identified in SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below (All versions), SIMATIC S7-400 (incl. F) CPU hardware version 5.0 (All firmware versions

Impact

Vector 3.x

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x

7.50

Severity 3.x

HIGH

Vector 2.0

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

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

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

Base Score 2.0

5.00

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:siemens:simatic_s7-400_firmware::::::::		4.0 (including)
cpe:2.3:h:siemens:simatic_s7-400:-:::::::*
cpe:2.3:o:siemens:simatic_s7-400_firmware::::::::		5.2 (excluding)
cpe:2.3:h:siemens:simatic_s7-400:-:::::::*
cpe:2.3:o:siemens:simatic_s7-400h_firmware::::::::		4.5 (including)
cpe:2.3:h:siemens:simatic_s7-400h:-:::::::*

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

CVE-2018-4850

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools