CVE Vulnerability

CVE-2021-33012

Rockwell Automation MicroLogix 1100, all versions, allows a remote, unauthenticated attacker sending specially crafted commands to cause the PLC to fault when the controller is switched to RUN mode, which results in a denial-of-service condition. If successfully exploited, this vulnerability will cause the controller to fault whenever the controller is switched to RUN mode.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

8.6 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-189-01 Third Party Advisory US Government Resource
Configurations

Configuration 1
Information

Published : 2021-07-09 03:15

Updated : 2021-07-12 05:09

NVD link : CVE-2021-33012

Mitre link : CVE-2021-33012

Products Affected

Micrologix 1100 Firmware

Rockwellautomation

CWE
NVD-CWE-noinfo