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Fencer Intel
high 7.5

CVE-2019-10954 json

Rockwell Automation CompactLogix 5370 Stack-based Buffer Overflow

published 7y ago modified 4mo ago also EUVD-2019-2668

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.1%
EPSS 6.1% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

An attacker could send crafted SMTP packets to cause a denial-of-service condition where the controller enters a major non-recoverable faulted state (MNRF) in CompactLogix 5370 L1, L2, and L3 Controllers, Compact GuardLogix 5370 controllers, and Armor Compact GuardLogix 5370 Controllers Versions 20 - 30 and earlier.

Patch / fix

  • Rockwell Automation CompactLogix 5370 L1 controllers 20 - 30
  • Rockwell Automation CompactLogix 5370 L2 controllers 20 - 30
  • Rockwell Automation CompactLogix 5370 L3 controllers 20 - 30
  • Rockwell Automation Compact GuardLogix 5370 controllers 20 - 30
  • Rockwell Automation Armor Compact GuardLogix 5370 controllers 20 - 30

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Vendor advisories

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

cisa ICSA-19-120-01 updated cvss 8.6

ICSA-19-120-01_Rockwell Automation CompactLogix 5370

  • Rockwell Automation Armor Compact GuardLogix 5370 controllers >= 20, <= 30.014 Rockwell Automation Compact GuardLogix 5370 controllers >= 20, <= 30.014 Rockwell Automation CompactLogix 5370 L1 controllers >= 20, <= 30.014 Rockwell Automation CompactLogix 5370 L2 controllers >= 20, <= 30.014 Rockwell Automation CompactLogix 5370 L3 controllers >= 20, <= 30.014
    affected: mitigation “Rockwell Automation strongly encourages users to apply the latest available version of firmware to keep up to date with the latest features, anomaly fixes, and security improvements.” 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

Exploit prediction

6.10% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • Rockwell Automation CompactLogix 5370 L1 controllers
  • Rockwell Automation CompactLogix 5370 L2 controllers
  • Rockwell Automation CompactLogix 5370 L3 controllers
  • Rockwell Automation Compact GuardLogix 5370 controllers
  • Rockwell Automation Armor Compact GuardLogix 5370 controllers

Classification

Weakness

References

Sources

Fencer Intel 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.