CVE-2024-3493

highpriority · track · 30EPSS 0.006 · 50 %ileDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.64% (50th) EPSS
CVSS 7.5 · high
Is it mine?
38 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-23

A specific malformed fragmented packet type (fragmented packets may be generated automatically by devices that send large amounts of data) can cause a major nonrecoverable fault (MNRF) Rockwell Automation's ControlLogix 5580, Guard Logix 5580, CompactLogix 5380, and 1756-EN4TR. If exploited, the affected product will become unavailable and require a manual restart to recover it. Additionally, an MNRF could result in a loss of view and/or control of connected devices.

01

remediations

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

A vendor fix is available.

  • Fixed1756-EN4TRcisa_csaf_ot

    1756-EN4TR: Update to version V6.001

  • FixedCompact GuardLogix 5380cisa_csaf_ot

    Compact GuardLogix 5380: Update to version V35.013, V36.011 and later

  • FixedCompactLogix 5380cisa_csaf_ot

    CompactLogix 5380 Process: Update to version V35.013, V36.011 and later

  • FixedCompactLogix 5380 Processcisa_csaf_ot

    CompactLogix 5380 Process: Update to version V35.013, V36.011 and later

  • FixedCompactLogix 5480cisa_csaf_ot

    CompactLogix 5480: Update to version V35.013, V36.011 and later

  • FixedControlLogix 5580cisa_csaf_ot

    ControlLogix 5580 Process: Update to version V35.013, V36.011 and later

  • FixedControlLogix 5580 Processcisa_csaf_ot

    ControlLogix 5580 Process: Update to version V35.013, V36.011 and later

  • FixedGuardLogix 5580cisa_csaf_ot

    GuardLogix 5580: Update to version V35.013 or V36.011

  • Mitigation1756-EN4TRcisa_csaf_ot

    Rockwell Automation has released product updates addressing this vulnerability:

  • MitigationCompact GuardLogix 5380cisa_csaf_ot

    Rockwell Automation has released product updates addressing this vulnerability:

  • MitigationCompactLogix 5380cisa_csaf_ot

    Rockwell Automation has released product updates addressing this vulnerability:

  • MitigationCompactLogix 5380 Processcisa_csaf_ot

    Rockwell Automation has released product updates addressing this vulnerability:

  • MitigationCompactLogix 5480cisa_csaf_ot

    Rockwell Automation has released product updates addressing this vulnerability:

  • MitigationControlLogix 5580cisa_csaf_ot

    Rockwell Automation has released product updates addressing this vulnerability:

  • MitigationControlLogix 5580 Processcisa_csaf_ot

    Rockwell Automation has released product updates addressing this vulnerability:

  • MitigationGuardLogix 5580cisa_csaf_ot

    Rockwell Automation has released product updates addressing this vulnerability:

02

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)
03

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-20USCWE-20US
05

affected products (38)

Products and version ranges known to be affected.

showing 20 of 38
06

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2024-0908Rockwell Automation ControlLogix: Schwachstelle ermöglicht Denial of ServiceDeutsch2024-04-16csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Rockwell Automation ControlLogix ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • ICSA-24-107-03Rockwell Automation ControlLogix and GuardLogix (Update A)2024-04-16icsa · cisa_csaf_otUS

    Successful exploitation of this vulnerability could allow an attacker to cause a major nonrecoverable fault (MNRF) resulting in the product to become unavailable.

07

also known as (5)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otcert_bundNVDCVE.orgMITRE
published 2024-04-15modified 2026-06-17
09

references (4)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan