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No exploitation reported

CVE-2016-9343

No exploitation reported by the sources we read.

  • Published2017-02-13
  • WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in Rockwell Automation Logix5000 Programmable Automation Controller FRN 16.00 through 21.00 (excluding all firmware versions prior to FRN 16.00, which are not affected). By sending malformed common industrial protocol (CIP) packet, an attacker may be able to overflow a stack-based buffer and execute code on the controller or initiate a nonrecoverable fault resulting in a denial of service.

Timeline

dates in UTC
  1. 2017-02-1321:59CVE publishedNVD
  2. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-9343?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-9343?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Rockwellautomation 1768 compactlogix l4x controller firmwareversion to verify
BranchAffectedFixed in
16.0= 16.00no fix published
16.20= 16.020no fix published
16.25= 16.025no fix published
17.0= 17.00no fix published
18.0= 18.00no fix published
19.0= 19.00no fix published
20.0= 20.00no fix published
20.11= 20.011no fix published
20.16= 20.016no fix published
Rockwellautomation 1769 compactlogix l3x controller firmwareversion to verify
BranchAffectedFixed in
16.0= 16.00no fix published
16.20= 16.020no fix published
16.23= 16.023no fix published
17.0= 17.00no fix published
18.0= 18.00no fix published
19.0= 19.00no fix published
20.0= 20.00no fix published
20.10= 20.010no fix published
20.13= 20.013no fix published
Rockwellautomation controllogix 5560 controller firmwareversion to verify
BranchAffectedFixed in
16.0= 16.00no fix published
16.20= 16.020no fix published
16.22= 16.022no fix published
17.0= 17.00no fix published
18.0= 18.00no fix published
19.0= 19.00no fix published
20.0= 20.00no fix published
20.10= 20.010no fix published
20.13= 20.013no fix published

13 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVSS 3.110read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • NVDweakness (CWE)CWE-787read 2026-10-23
  • FIRST EPSSEPSS score10.5 %read 2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published
2017-02-13
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2016-9343?

An issue was discovered in Rockwell Automation Logix5000 Programmable Automation Controller FRN 16.00 through 21.00 (excluding all firmware versions prior to FRN 16.00, which are not affected). By sending malformed common industrial protocol (CIP) packet, an attacker may be able to overflow a stack-based buffer and execute code on the controller or initiate a nonrecoverable fault resulting in a denial of service.

Is CVE-2016-9343 actively exploited?

Active exploitation of CVE-2016-9343 has not been confirmed. Its EPSS score was 10.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-9343?

CVE-2016-9343 has a CVSS v3 base score of 10 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

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