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Fencer Vulns
medium 6.9

CVE-2024-7567 json

Rockwell Automation Micro850/870 Vulnerable to denial-of-service Vulnerability via CIP/Modbus Port

published 2024-08-13 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-48466

cvss
6.9
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

A denial-of-service vulnerability exists via the CIP/Modbus port in the Rockwell Automation Micro850/870 (2080 -L50E/2080 -L70E). If exploited, the CIP/Modbus communication may be disrupted for short duration.

Patch / fix

  • rockwellautomation micro850_firmware 22.011
  • rockwellautomation micro870_firmware 22.011

Vendor advisories

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

cisa ICSA-24-226-07 updated cvss 5.3

Rockwell Automation Micro850/870

  • Rockwell Automation PLC - Micro850/870 (2080 -L50E/2080 -L70E) <v22.011
    affected: mitigation “Rockwell Automation recommends that users update to version v22.011.” 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

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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

Affected products

  • Rockwell Automation PLC - Micro850/870 (2080 -L50E/2080 -L70E)
  • rockwellautomation micro850_firmware
  • rockwellautomation micro870_firmware

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

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.