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Fencer Intel
high 7.5

CVE-2017-9312 json

Improperly implemented option-field processing in the TCP/IP stack on Allen-Bradley L30ERMS safety devices v30 and earlier causes a denial…

published 2018-06-25 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-18247

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.3%
EPSS 4.3% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Improperly implemented option-field processing in the TCP/IP stack on Allen-Bradley L30ERMS safety devices v30 and earlier causes a denial of service. When a crafted TCP packet is received, the device reboots immediately.

Vendor advisories

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

cisa ICSA-18-172-02 updated cvss 8.6

Rockwell Automation Allen-Bradley CompactLogix and Compact GuardLogix (Update A)

  • Rockwell Automation Allen-Bradley Armor Compact GuardLogix 5370 controllers <= 30.014 Rockwell Automation Allen-Bradley Armor CompactLogix 5370 L3 controllers <= 30.014 Rockwell Automation Allen-Bradley Compact GuardLogix 5370 controllers <= 30.014 Rockwell Automation Allen-Bradley CompactLogix 5370 L1 controllers <= 30.014 Rockwell Automation Allen-Bradley CompactLogix 5370 L2 controllers <= 30.014 Rockwell Automation Allen-Bradley CompactLogix 5370 L3 controllers <= 30.014
    affected: mitigation “Rockwell Automation recommends users with affected controllers apply firmware revision FRN (31.011 or later) to the affected products. The download can be obtained at the following location:” 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

4.33% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/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

Classification

Weakness
  • CWE-20 Improper Input Validation

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.