// For flags

CVE-2021-33012

 

Severity Score

8.6
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Rockwell Automation MicroLogix 1100, todas las versiones, permite a un atacante remoto no autenticado enviar comandos especialmente diseñados para causar un fallo en el PLC cuando el controlador es colocado en modo RUN, lo que resulta en una condición de denegación de servicio. Si es explotado con éxito, esta vulnerabilidad causará al controlador cometer un fallo cada vez que es colocado en modo RUN

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-05-13 CVE Reserved
  • 2021-07-09 CVE Published
  • 2024-06-27 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
References (1)
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Rockwellautomation
Search vendor "Rockwellautomation"
Micrologix 1100 Firmware
Search vendor "Rockwellautomation" for product "Micrologix 1100 Firmware"
*-
Affected
in Rockwellautomation
Search vendor "Rockwellautomation"
Micrologix 1100
Search vendor "Rockwellautomation" for product "Micrologix 1100"
--
Safe