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Fencer Vulns
high 7.3

CVE-2024-6242 in the critical feed json

Rockwell Automation Chassis Restrictions Bypass Vulnerability in Select Logix Devices

published 2024-08-01 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-47370

cvss
7.3
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
11.1%
EPSS 11.1% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

A vulnerability exists in Rockwell Automation affected products that allows a threat actor to bypass the Trusted® Slot feature in a ControlLogix® controller. If exploited on any affected module in a 1756 chassis, a threat actor could potentially execute CIP commands that modify user projects and/or device configuration on a Logix controller in the chassis.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-24-214-09 updated cvss 8.4

Rockwell Automation Logix Controllers

  • Rockwell Automation 1756-EN2F, Series A/B (signed version) v5.027 Rockwell Automation 1756-EN2F, Series A/B (unsigned version) v5.007
    affected: mitigation “Rockwell Automation recommends user update the Logix controllers to the following:” rockwellautomation.custhelp.com
  • Rockwell Automation 1756-EN2F, Series C V10.009
    affected: mitigation “Rockwell Automation recommends user update the Logix controllers to the following:” compatibility.rockwellautomation.com
  • Rockwell Automation 1756-EN2T, Series A/B/C (signed version) v5.027 Rockwell Automation 1756-EN2T, Series A/B/C (unsigned version) v5.007
    affected: mitigation “Rockwell Automation recommends user update the Logix controllers to the following:” rockwellautomation.custhelp.com
  • Rockwell Automation 1756-EN2T, Series D V10.006 Rockwell Automation 1756-EN2TP, Series A V10.020
    affected: mitigation “Rockwell Automation recommends user update the Logix controllers to the following:” compatibility.rockwellautomation.com
  • Rockwell Automation 1756-EN2TR, Series A/B (signed version) v5.027 Rockwell Automation 1756-EN2TR, Series A/B (unsigned version) v5.007
    affected: mitigation “Rockwell Automation recommends user update the Logix controllers to the following:” rockwellautomation.custhelp.com
  • Rockwell Automation 1756-EN2TR, Series C V10.007
    affected: mitigation “Rockwell Automation recommends user update the Logix controllers to the following:” compatibility.rockwellautomation.com
  • Rockwell Automation 1756-EN3TR, Series A (signed version) v5.027 Rockwell Automation 1756-EN3TR, Series A (unsigned version) v5.007
    affected: mitigation “Rockwell Automation recommends user update the Logix controllers to the following:” rockwellautomation.custhelp.com
  • Rockwell Automation 1756-EN3TR, Series B V10.007
    affected: mitigation “Rockwell Automation recommends user update the Logix controllers to the following:” compatibility.rockwellautomation.com
show 2 more
  • Rockwell Automation 1756-EN4TR V2 Rockwell Automation ControlLogix 5580 (1756-L8z) V28
    affected: vendor fix, mitigation “Rockwell Automation recommends user update the Logix controllers to the following:” compatibility.rockwellautomation.com
  • Rockwell Automation GuardLogix 5580 (1756-L8zS) V31
    affected: mitigation “Rockwell Automation recommends user update the Logix controllers to the following:” compatibility.rockwellautomation.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
13 mo ago

Exploit prediction

11.10% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 7.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H
CNA 4.0 7.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • Rockwell Automation ControlLogix® 5580 (1756-L8z)
  • Rockwell Automation GuardLogix® 5580 (1756-L8zS)
  • Rockwell Automation 1756-EN4TR
  • Rockwell Automation 1756-EN2T
  • Rockwell Automation 1756-EN2F
  • Rockwell Automation 1756-EN2TR
  • Rockwell Automation 1756-EN3TR
  • Rockwell Automation 1756-EN2TP

Classification

Weakness
  • CWE-420 Unprotected Alternate Channel

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.