CVE-2023-7033

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2024-02-27. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.3Exploit: None knownExposed: 0

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

Insufficient Resource Pool vulnerability in Ethernet function of Mitsubishi Electric Corporation MELSEC iQ-R series CPU module, MELSEC iQ-L series CPU module, MELSEC iQ-R Ethernet Interface Module, MELSEC iQ-R CC-Link IE TSN Master/Local Module, CC-Link IE TSN Remote I/O Module, CC-Link IE TSN Analog-Digital Converter Module, CC-Link IE TSN Digital-Analog Converter Module, CC-Link IE TSN - CC-Link IE Field Network Bridge Module, CC-Link IE TSN - AnyWireASLINK Bridge Module, CC-Link IE TSN FPGA Module, CC-Link IE TSN Remote Station Communication LSI CP620 with GbE-PHY, MELSEC iQ-R Motion Module, MELSEC iQ-L Motion Module, MELSEC iQ-F FX5 Motion Module, MELSEC iQ-F Series CPU module, MELSEC iQ-F Series Ethernet module, MELSEC iQ-F Series Ethernet/IP module, MELSEC iQ-F Series OPC UA Module, MELSEC iQ-F Series CC-Link IE TSN master/local module, GOT2000 Series CC-Link IE TSN Communication Unit, FR-A800-E series inverters, FR-F800-E series inverters, FR-E800-E series inverters, INVERTER CC-Link IE TSN Plug-in option, INVERTER CC-Link IE TSN Safety Plug-in option, INVERTER CC-Link IE TSN communication function built-in type, MR-J5 series AC Servos MELSERVO, MR-JET series AC Servos MELSERVO, MR-MD333G series AC Servos MELSERVO, MR-JE series AC Servos MELSERVO, MELSERVO-J4 AC Servos MELSERVO and Embedded Type Servo System Controller allow a remote attacker to cause a temporary Denial of Service condition for a certain period of time in Ethernet communication of the products by performing TCP SYN Flood attack.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity53% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
56%
KEV
Not listed

Published

February 27, 2024

Last Modified

April 15, 2026

References (6)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 28× 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.

Showing the most recent 100 of 165 total refreshes for this CVE.

  1. 2026-09-18 19:26 UTCEPSS rescore
  2. 2026-09-16 14:06 UTCEPSS rescore
  3. 2026-09-16 05:11 UTCEPSS rescore
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  24. 2026-08-25 13:47 UTCEPSS rescore
  25. 2026-08-23 00:17 UTCEPSS rescore
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  1. 2026-08-23 00:17 UTCEPSS rescore
  2. 2026-08-21 23:47 UTCEPSS rescore
  3. 2026-08-20 22:53 UTCEPSS rescore
  4. 2026-08-19 17:02 UTCEPSS rescore
  5. 2026-08-18 13:46 UTCEPSS rescore
  6. 2026-08-16 14:54 UTCEPSS rescore
  7. 2026-08-16 02:12 UTCEPSS rescore
  8. 2026-08-15 01:28 UTCEPSS rescore
  9. 2026-08-13 21:58 UTCEPSS rescore
  10. 2026-08-12 13:49 UTCEPSS rescore
  11. 2026-08-11 13:40 UTCEPSS rescore
  12. 2026-08-10 23:58 UTCEPSS rescore
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  17. 2026-08-05 19:15 UTCEPSS rescore
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  19. 2026-08-04 10:36 UTCEPSS rescore
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  21. 2026-08-02 02:25 UTCEPSS rescore
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  23. 2026-08-01 04:14 UTCEPSS rescore
  24. 2026-07-30 16:26 UTCEPSS rescore
  25. 2026-07-30 01:29 UTCEPSS rescore
  26. 2026-07-28 15:34 UTCEPSS rescore
  27. 2026-07-28 15:34 UTCEPSS rescore
  28. 2026-07-26 14:53 UTCEPSS rescore
  29. 2026-07-25 14:16 UTCEPSS rescore
  30. 2026-07-24 14:16 UTCEPSS rescore
  31. 2026-07-23 14:16 UTCEPSS rescore
  32. 2026-07-23 02:30 UTCEG score recompute
  33. 2026-07-22 23:17 UTCEG score recompute
  34. 2026-07-22 14:07 UTCEPSS rescore
  35. 2026-07-22 14:07 UTCEPSS rescore
  36. 2026-07-21 15:23 UTCEPSS rescore
  37. 2026-07-20 17:06 UTCEPSS rescore
  38. 2026-07-19 14:30 UTCEPSS rescore
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  40. 2026-07-19 02:27 UTCEPSS rescore
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  42. 2026-07-18 10:03 UTCEPSS rescore
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  44. 2026-07-16 17:01 UTCEPSS rescore
  45. 2026-07-15 16:56 UTCEPSS rescore
  46. 2026-07-15 01:59 UTCEPSS rescore
  47. 2026-07-15 01:59 UTCEPSS rescore
  48. 2026-07-13 22:28 UTCEPSS rescore
  49. 2026-07-13 22:28 UTCEPSS rescore
  50. 2026-07-13 06:11 UTCEPSS rescore
  51. 2026-07-12 05:45 UTCEPSS rescore
  52. 2026-07-12 05:45 UTCEPSS rescore
  53. 2026-07-11 08:26 UTCEPSS rescore
  54. 2026-07-09 19:08 UTCEPSS rescore
  55. 2026-07-08 15:13 UTCEPSS rescore
  56. 2026-07-07 13:45 UTCEPSS rescore
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  58. 2026-07-06 16:26 UTCEPSS rescore
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  60. 2026-07-06 02:22 UTCEPSS rescore
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  62. 2026-07-05 02:29 UTCEPSS rescore
  63. 2026-07-04 06:29 UTCEPSS rescore
  64. 2026-07-01 15:05 UTCEPSS rescore
  65. 2026-06-30 23:21 UTCEPSS rescore
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  67. 2026-06-29 14:05 UTCEPSS rescore
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  70. 2026-06-28 04:55 UTCEPSS rescore
  71. 2026-06-27 03:07 UTCEPSS rescore
  72. 2026-06-25 13:48 UTCEPSS rescore
  73. 2026-06-25 13:48 UTCEPSS rescore
  74. 2026-06-24 14:04 UTCEPSS rescore
  75. 2026-06-24 14:04 UTCEPSS rescore

Frequently asked(5)

What is CVE-2023-7033?
CVE-2023-7033 is a medium vulnerability published on February 27, 2024. Insufficient Resource Pool vulnerability in Ethernet function of Mitsubishi Electric Corporation MELSEC iQ-R series CPU module, MELSEC iQ-L series CPU module, MELSEC iQ-R Ethernet Interface Module, MELSEC iQ-R CC-Link IE TSN Master/Local Module, CC-Link IE TSN Remote I/O Module, CC-Link IE TSN…
When was CVE-2023-7033 disclosed?
CVE-2023-7033 was first published in the National Vulnerability Database on February 27, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-7033 actively exploited?
CVE-2023-7033 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 43.5% of all scored CVEs.
What is the CVSS score of CVE-2023-7033?
CVE-2023-7033 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2023-7033?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-7033, 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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