CVE-2016-9343

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
10.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 10%CVSS: 10.0Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
10.0
EG Score
10.0(medium)
EG Risk
66(Track*)
EG Risk 66/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity100% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
95.3%
KEV
Not listed

Published

February 13, 2017

Last Modified

May 13, 2026

Advisory Details (1)

Auto-updated Jul 22, 2026
No patch confirmed yet.
generic
http://www.securityfocus.com/bid/95304

Data Freshness Timeline

(refreshed 12× in last 7d / 37× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-24 14:13 UTCEPSS rescore
  2. 2026-07-23 14:15 UTCEPSS rescore
  3. 2026-07-23 01:24 UTCEG score recompute
  4. 2026-07-22 22:04 UTCEG score recompute
  5. 2026-07-22 14:04 UTCEPSS rescore
  6. 2026-07-21 15:21 UTCEPSS rescore
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  15. 2026-07-16 16:59 UTCEPSS rescore
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  24. 2026-07-11 08:24 UTCEPSS rescore
  25. 2026-07-09 19:06 UTCEPSS rescore
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  1. 2026-07-08 15:10 UTCEPSS rescore
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  5. 2026-07-05 02:27 UTCEPSS rescore
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  7. 2026-07-01 15:02 UTCEPSS rescore
  8. 2026-06-30 23:19 UTCEPSS rescore
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  10. 2026-06-28 04:53 UTCEPSS rescore
  11. 2026-06-27 03:05 UTCEPSS rescore
  12. 2026-06-25 13:47 UTCEPSS rescore
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  16. 2026-06-21 14:54 UTCEPSS rescore
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  18. 2026-06-21 01:57 UTCEPSS rescore
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  20. 2026-06-18 17:50 UTCEPSS rescore
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  22. 2026-06-17 17:50 UTCEPSS rescore
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  25. 2026-06-15 17:45 UTCEPSS rescore
  26. 2026-06-14 23:14 UTCEPSS rescore
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  28. 2026-06-13 22:57 UTCEPSS rescore
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  30. 2026-06-12 23:09 UTCEPSS rescore
  31. 2026-06-11 13:57 UTCEPSS rescore
  32. 2026-06-08 14:14 UTCEPSS rescore
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  35. 2026-06-06 13:45 UTCEPSS rescore
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  37. 2026-06-05 22:44 UTCEPSS rescore
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  40. 2026-06-04 13:10 UTCEPSS rescore
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  42. 2026-06-02 20:10 UTCEPSS rescore
  43. 2026-06-01 13:49 UTCEPSS rescore
  44. 2026-06-01 13:49 UTCEPSS rescore
  45. 2026-05-31 22:28 UTCEPSS rescore
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  47. 2026-05-31 00:14 UTCEPSS rescore
  48. 2026-05-29 13:41 UTCEPSS rescore
  49. 2026-05-28 13:42 UTCEPSS rescore
  50. 2026-05-28 13:42 UTCEPSS rescore
  51. 2026-05-27 13:38 UTCEPSS rescore
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  53. 2026-05-26 13:42 UTCEPSS rescore
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  55. 2026-05-26 07:17 UTCEPSS rescore
  56. 2026-05-24 16:44 UTCEPSS rescore
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  61. 2026-05-20 11:21 UTCEPSS rescore
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  63. 2026-05-20 07:48 UTCGHSA enrichment
  64. 2026-05-20 03:36 UTCGHSA enrichment
  65. 2026-05-19 23:24 UTCGHSA enrichment
  66. 2026-05-19 19:12 UTCGHSA enrichment
  67. 2026-05-19 15:00 UTCGHSA enrichment
  68. 2026-05-19 10:47 UTCGHSA enrichment
  69. 2026-05-19 06:35 UTCGHSA enrichment
  70. 2026-05-19 02:22 UTCGHSA enrichment
  71. 2026-05-18 22:10 UTCEG score recompute
  72. 2026-05-18 21:30 UTCEPSS rescore
  73. 2026-05-18 21:30 UTCEPSS rescore
  74. 2026-05-18 21:30 UTCEPSS rescore

Frequently asked(5)

What is CVE-2016-9343?
CVE-2016-9343 is a critical vulnerability published on February 13, 2017. 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…
When was CVE-2016-9343 disclosed?
CVE-2016-9343 was first published in the National Vulnerability Database on February 13, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-9343 actively exploited?
CVE-2016-9343 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 95.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-9343?
CVE-2016-9343 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2016-9343?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-9343, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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