CVE-2024-21916

highpriority · track · 30EPSS 0.006 · 51 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.65% (51st) EPSS

CVSS 7.5 · high

Is it mine?

18 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedControlLogix 5570cisa_csaf_ot
ControlLogix 5570: Corrected in v33.016, 34.013, 35.012, 36.011 and later
FixedControlLogix 5570 redundantcisa_csaf_ot
ControlLogix 5570 redundant: Corrected in v33.053_kit1, 34.052_kit1, 35.052_kit1, 36.051_kit1 and later
FixedGuardLogix 5570cisa_csaf_ot
GuardLogix 5570: Corrected in v33.016, 34.013, 35.012, 36.011 and later
MitigationControlLogix 5570cisa_csaf_ot
Rockwell Automation users with the affected software are encouraged to apply the risk mitigations, if possible. Additionally, Rockwell Automation encourages users to implement their suggested security best practices to minimize the risk of vulnerability.
MitigationControlLogix 5570 redundantcisa_csaf_ot
Rockwell Automation users with the affected software are encouraged to apply the risk mitigations, if possible. Additionally, Rockwell Automation encourages users to implement their suggested security best practices to minimize the risk of vulnerability.
MitigationGuardLogix 5570cisa_csaf_ot
Rockwell Automation users with the affected software are encouraged to apply the risk mitigations, if possible. Additionally, Rockwell Automation encourages users to implement their suggested security best practices to minimize the risk of vulnerability.

cvss

Technical severity, 0–10. One row per scoring source.

8.6

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–8.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · CISA US

v3.18.6highAV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · ENISA EU

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · PSIRT@rockwellautomation.comexploitability 3.9 · impact 4

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USprimaryCWE-119USCWE-119US

affected products (18)

Products and version ranges known to be affected.

Rockwell Automation ControlLogix 5570 redundant: Firmware__20.054_kit1all versionscisa_csaf_otUS
Rockwell Automation ControlLogix 5570: Firmware__20.011all versionscisa_csaf_otUS
Rockwell Automation GuardLogix 5570: Firmware__20.011all versionscisa_csaf_otUS
Rockwell Automation ControlLogix 5570all versionscisa_csaf_otUS
Rockwell Automation ControlLogix 5570 redundantall versionscisa_csaf_otUS
Rockwell Automation GuardLogix 5570all versionscisa_csaf_otUS
Rockwell Automation ControlLogix® 5570≤ 20.011enisa_euvdEU
Rockwell Automation ControlLogix® 5570all versionsenisa_euvdEU
Rockwell Automation ControlLogix® 5570 redundant≤ 20.054_kit1enisa_euvdEU
Rockwell Automation ControlLogix® 5570 redundantall versionsenisa_euvdEU
Rockwell Automation GuardLogix® 5570≤ 20.011enisa_euvdEU
Rockwell Automation GuardLogix® 5570all versionsenisa_euvdEU
Rockwell Automation Inc. Rockwell Automation ControlLogix 5570≤ 20.011fstec_bduRU
Rockwell Automation Inc. Rockwell Automation ControlLogix 5570 Redundancy≤ 20.054_kit1fstec_bduRU
Rockwell Automation Inc. Rockwell Automation GuardLogix 5570≤ 20.011fstec_bduRU
rockwellautomation controllogix 5570 controller firmware= 20.011nvdUScpe:2.3:o:rockwellautomation:controllogix_5570_controller_firmware:*:*:*:*:*:*:*:*
rockwellautomation controllogix 5570 redundant controller firmware= 20.054_kit1nvdUScpe:2.3:o:rockwellautomation:controllogix_5570_redundant_controller_firmware:*:*:*:*:*:*:*:*
rockwellautomation guardlogix 5570 controller firmware= 20.011nvdUScpe:2.3:o:rockwellautomation:guardlogix_5570_controller_firmware:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-0271Rockwell Automation ControlLogix: Schwachstelle ermöglicht Denial of ServiceDeutsch2024-01-31csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Rockwell Automation ControlLogix ausnutzen, um einen Denial of Service Angriff durchzuführen.
ICSA-24-030-05Rockwell Automation ControlLogix and GuardLogix2024-01-30icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability could allow an attacker to crash the device by exploiting a Denial-of-Service (DoS) vulnerability.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd cert_bund NVD CVE.org MITRE

published 2024-01-31modified 2026-06-17

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references (4)

External citations — patches, advisories, analysis.

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