CVE-2018-7758

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2022-05-14. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.5Exploit: NoneExposed: 0

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

A denial of service vulnerability exists in Schneider Electric's MiCOM Px4x (P540 range excluded) with legacy Ethernet board, MiCOM P540D Range with Legacy Ethernet Board, and MiCOM Px4x Rejuvenated could lose network communication in case of TCP/IP open requests on port 20000 (DNP3oE) if an older TCI/IP session is still open with identical IP address and port number.

CVSS v3
6.5
EG Score
6.5(medium)
EPSS
46.6%
KEV
Not listed

Published

April 18, 2018

Last Modified

November 21, 2024

References (6)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 42× 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. 2026-07-22 14:05 UTCEPSS rescore
  2. 2026-07-21 15:22 UTCEPSS rescore
  3. 2026-07-20 17:04 UTCEPSS rescore
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  9. 2026-07-16 16:59 UTCEPSS rescore
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  11. 2026-07-15 16:55 UTCEPSS rescore
  12. 2026-07-15 01:56 UTCEPSS rescore
  13. 2026-07-13 22:27 UTCEPSS rescore
  14. 2026-07-13 06:10 UTCEPSS rescore
  15. 2026-07-12 05:43 UTCEPSS rescore
  16. 2026-07-09 19:06 UTCEPSS rescore
  17. 2026-07-08 15:11 UTCEPSS rescore
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  19. 2026-07-07 13:42 UTCEPSS rescore
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  21. 2026-07-06 16:25 UTCEPSS rescore
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  1. 2026-07-04 06:28 UTCEPSS rescore
  2. 2026-07-01 15:03 UTCEPSS rescore
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  4. 2026-06-30 23:20 UTCEPSS rescore
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  6. 2026-06-29 14:03 UTCEPSS rescore
  7. 2026-06-28 14:04 UTCEPSS rescore
  8. 2026-06-28 04:53 UTCEPSS rescore
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  10. 2026-06-27 03:06 UTCEPSS rescore
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  12. 2026-06-25 13:47 UTCEPSS rescore
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  14. 2026-06-24 14:02 UTCEPSS rescore
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  16. 2026-06-23 21:30 UTCEPSS rescore
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  18. 2026-06-22 14:23 UTCEPSS rescore
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  20. 2026-06-21 14:54 UTCEPSS rescore
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  22. 2026-06-21 01:57 UTCEPSS rescore
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  24. 2026-06-19 19:23 UTCEPSS rescore
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  26. 2026-06-18 17:50 UTCEPSS rescore
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  31. 2026-06-15 17:45 UTCEPSS rescore
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  37. 2026-06-11 13:57 UTCEPSS rescore
  38. 2026-06-10 22:16 UTCEPSS rescore
  39. 2026-06-10 13:19 UTCEPSS rescore
  40. 2026-06-08 14:14 UTCEPSS rescore
  41. 2026-06-07 15:22 UTCEPSS rescore
  42. 2026-06-07 15:22 UTCEPSS rescore
  43. 2026-06-06 13:45 UTCEPSS rescore
  44. 2026-06-06 13:45 UTCEPSS rescore
  45. 2026-06-05 22:45 UTCEPSS rescore
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  47. 2026-06-05 06:08 UTCEPSS rescore
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  49. 2026-06-04 13:10 UTCEPSS rescore
  50. 2026-06-04 13:10 UTCEPSS rescore
  51. 2026-06-02 20:11 UTCEPSS rescore
  52. 2026-06-01 13:50 UTCEPSS rescore
  53. 2026-05-31 22:29 UTCEPSS rescore
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  55. 2026-05-31 00:14 UTCEPSS rescore
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  57. 2026-05-29 13:41 UTCEPSS rescore
  58. 2026-05-28 13:43 UTCEPSS rescore
  59. 2026-05-28 13:42 UTCEPSS rescore
  60. 2026-05-28 08:58 UTCEG score recompute
  61. 2026-05-28 08:57 UTCGHSA enrichment
  62. 2026-05-27 13:38 UTCEPSS rescore
  63. 2026-05-26 13:42 UTCEPSS rescore
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  65. 2026-05-26 07:17 UTCEPSS rescore
  66. 2026-05-26 07:17 UTCEPSS rescore

Frequently asked(5)

What is CVE-2018-7758?
CVE-2018-7758 is a medium vulnerability published on April 18, 2018. A denial of service vulnerability exists in Schneider Electric's MiCOM Px4x (P540 range excluded) with legacy Ethernet board, MiCOM P540D Range with Legacy Ethernet Board, and MiCOM Px4x Rejuvenated could lose network communication in case of TCP/IP open requests on port 20000 (DNP3oE) if an older…
When was CVE-2018-7758 disclosed?
CVE-2018-7758 was first published in the National Vulnerability Database on April 18, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-7758 actively exploited?
CVE-2018-7758 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 46.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-7758?
CVE-2018-7758 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2018-7758?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-7758, 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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