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Fencer Vulns
high 7.5

CVE-2024-8626 json

Logix Controllers Vulnerable to Denial-of-Service Vulnerability

published 2024-10-08 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-49305

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits
0
none known

Summary

Due to a memory leak, a denial-of-service vulnerability exists in the Rockwell Automation affected products. A malicious actor could exploit this vulnerability by performing multiple actions on certain web pages of the product causing the affected products to become fully unavailable and require a power cycle to recover.

Patch / fix

  • rockwellautomation compactlogix_5380_firmware 33.015
  • rockwellautomation compact_guardlogix_5380_firmware 33.015
  • rockwellautomation compactlogix_5480_firmware 33.015
  • rockwellautomation guardlogix_5580_firmware 33.015

Vendor advisories

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

cisa ICSA-24-284-18 updated cvss 8.6

Rockwell Automation Logix Controllers

  • Rockwell Automation 1756-EN4TR v3.002
    affected: fixed in 4.001, mitigation “Rockwell Automation offers users the following solutions:” rockwellautomation.custhelp.com
  • Rockwell Automation Compact GuardLogix 5380 >v33.011, <v33.015 Rockwell Automation CompactLogix 5380 >v33.011, <v33.015 Rockwell Automation CompactLogix 5480 >v33.011, <v33.015 Rockwell Automation ControlLogix 5580 >v33.011, <v33.015 Rockwell Automation GuardLogix 5580 >v33.011, <v33.015
    affected: fixed in v33.015, mitigation “Rockwell Automation offers users the following solutions:” rockwellautomation.custhelp.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
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/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
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Rockwell Automation CompactLogix 5380 controllers
  • Rockwell Automation Compact GuardLogix® 5380 controllers
  • Rockwell Automation CompactLogix 5480 controllers
  • Rockwell Automation GuardLogix 5580 controllers
  • Rockwell Automation 1756-EN4TR
  • rockwellautomation compactlogix_5380_firmware
  • rockwellautomation compact_guardlogix_5380_firmware
  • rockwellautomation compactlogix_5480_firmware
  • rockwellautomation guardlogix_5580_firmware
  • rockwellautomation 1756-en4tr_firmware

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-401 Missing Release of Memory after Effective Lifetime

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.