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CVE-2024-21916

Rockwell Automation Denial-of-service Vulnerability in ICE1 Controller

HIGH
7.5
CVSS Score
Published: January 31, 2024 at 06:28 PM UTC
Updated: June 17, 2026 at 07:10 AM UTC
9 products affected across 1 vendorControllogix 5570 Controller FirmwareControllogix 5570 Redundant Controller FirmwareGuardlogix 5570 Controller Firmware

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Severity
HIGH7.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

A denial-of-service vulnerability exists in specific Rockwell Automation ControlLogix ang GuardLogix controllers. If exploited, the product could potentially experience a major nonrecoverable fault (MNRF). The device will restart itself to recover from the MNRF.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://www.rockwellautomation.com/en-us/support/advisory.SD1661.html

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-119

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