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CVE-2017-16740

Severity CVSS v4.0:
Pending analysis
Type:
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Publication date:
09/01/2018
Last modified:
17/06/2026

Description

A Buffer Overflow issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1400 Controllers, Series B and C Versions 21.002 and earlier. The stack-based buffer overflow vulnerability has been identified, which may allow remote code execution.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 10.00 CRITICAL
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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

Base Score 3.x
10.00
Severity 3.x
CRITICAL
Vector 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

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

Base Score 2.0
7.50
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:rockwellautomation:1766-l32bxba_firmware:*:*:*:*:*:*:*:* 21.002 (including)
cpe:2.3:h:rockwellautomation:1766-l32bxba:-:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1766-l32awa_firmware:*:*:*:*:*:*:*:* 21.002 (including)
cpe:2.3:h:rockwellautomation:1766-l32awa:-:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1766-l32bxb_firmware:*:*:*:*:*:*:*:* 21.002 (including)
cpe:2.3:h:rockwellautomation:1766-l32bxb:-:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1766-l32bwaa_firmware:*:*:*:*:*:*:*:* 21.002 (including)
cpe:2.3:h:rockwellautomation:1766-l32bwaa:-:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1766-l32awaa_firmware:*:*:*:*:*:*:*:* 21.002 (including)
cpe:2.3:h:rockwellautomation:1766-l32awaa:-:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1766-l32bwa_firmware:*:*:*:*:*:*:*:* 21.002 (including)
cpe:2.3:h:rockwellautomation:1766-l32bwa:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools