CVE-2025-2399

MEDIUMPre-NVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

Score 5.9 from GitHub Security Advisory published 2026-03-10. a secondary CVSS source baseline 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.9Exploit: None knownExposed: 0

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

Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Mitsubishi Electric CNC M800V Series M800VW and M800VS, M80V Series M80V and M80VW, M800 Series M800W and M800S, M80 Series M80 and M80W, E80 Series E80, C80 Series C80, and M700V Series M750VW, M720VW, 730VW, M720VS, M730VS, and M750VS, M70V Series M70V, E70 Series E70 allows a remote attacker to cause an out-of-bounds read, resulting in a denial-of-service condition by sending specially crafted packets to TCP port 683.

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
27(Track)
EG Risk 27/100SSVC: 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
Severity59% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

March 10, 2026

Last Modified

August 27, 2026

Advisory Details (3)

Auto-updated Aug 2, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
generic
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2025-022_en.pdf
cisa Patch Available🔴 Active Exploitation

Mitsubishi Electric CNC Series | CISA

Mitsubishi Electric CNC Series | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/news-events/ics-advisories/icsa-26-078-05
generic

JVNVU#95523788: 三菱電機数値制御装置におけるサービス運用妨害（DoS）の脆弱性

https://jvn.jp/vu/JVNVU95523788/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 29× 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. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-16 14:07 UTCEPSS rescore
  3. 2026-09-16 05:13 UTCEPSS rescore
  4. 2026-09-13 16:46 UTCEPSS rescore
  5. 2026-09-12 15:00 UTCEPSS rescore
  6. 2026-09-11 14:52 UTCEPSS rescore
  7. 2026-09-11 09:35 UTCEPSS rescore
  8. 2026-09-10 09:33 UTCEPSS rescore
  9. 2026-09-08 21:59 UTCEPSS rescore
  10. 2026-09-07 16:00 UTCEPSS rescore
  11. 2026-09-06 13:46 UTCEPSS rescore
  12. 2026-09-06 13:46 UTCEPSS rescore
  13. 2026-09-04 05:05 UTCEPSS rescore
  14. 2026-09-02 14:11 UTCEPSS rescore
  15. 2026-09-01 13:53 UTCEPSS rescore
  16. 2026-08-30 19:16 UTCEPSS rescore
  17. 2026-08-30 19:16 UTCEPSS rescore
  18. 2026-08-30 01:21 UTCEPSS rescore
  19. 2026-08-28 21:40 UTCEPSS rescore
  20. 2026-08-27 14:24 UTCEPSS rescore
  21. 2026-08-27 10:27 UTCEG score recompute
  22. 2026-08-27 10:27 UTCGHSA enrichment
  23. 2026-08-27 09:24 UTCEG score recompute
  24. 2026-08-27 09:24 UTCGHSA enrichment
  25. 2026-08-26 14:45 UTCEPSS rescore
Show 48 more
  1. 2026-08-25 13:48 UTCEPSS rescore
  2. 2026-08-24 14:16 UTCEPSS rescore
  3. 2026-08-23 00:18 UTCEPSS rescore
  4. 2026-08-21 23:48 UTCEPSS rescore
  5. 2026-08-19 17:03 UTCEPSS rescore
  6. 2026-08-18 13:47 UTCEPSS rescore
  7. 2026-08-17 13:46 UTCEPSS rescore
  8. 2026-08-16 14:55 UTCEPSS rescore
  9. 2026-08-16 12:09 UTCEG score recompute
  10. 2026-08-16 12:09 UTCGHSA enrichment
  11. 2026-08-16 02:13 UTCEPSS rescore
  12. 2026-08-15 01:29 UTCEPSS rescore
  13. 2026-08-14 08:05 UTCEG score recompute
  14. 2026-08-14 08:05 UTCGHSA enrichment
  15. 2026-08-13 21:59 UTCEPSS rescore
  16. 2026-08-12 23:30 UTCEG score recompute
  17. 2026-08-12 23:30 UTCGHSA enrichment
  18. 2026-08-12 13:50 UTCEPSS rescore
  19. 2026-08-11 05:11 UTCEG score recompute
  20. 2026-08-11 05:11 UTCGHSA enrichment
  21. 2026-08-10 23:59 UTCEPSS rescore
  22. 2026-08-10 05:31 UTCEG score recompute
  23. 2026-08-10 05:31 UTCGHSA enrichment
  24. 2026-08-09 13:45 UTCEPSS rescore
  25. 2026-08-09 07:45 UTCEG score recompute
  26. 2026-08-09 07:45 UTCGHSA enrichment
  27. 2026-08-07 19:07 UTCEG score recompute
  28. 2026-08-07 19:07 UTCGHSA enrichment
  29. 2026-08-07 16:26 UTCEPSS rescore
  30. 2026-08-06 13:46 UTCEPSS rescore
  31. 2026-08-06 02:14 UTCEG score recompute
  32. 2026-08-06 02:14 UTCGHSA enrichment
  33. 2026-08-05 19:16 UTCEPSS rescore
  34. 2026-08-04 15:09 UTCEPSS rescore
  35. 2026-08-04 10:37 UTCEPSS rescore
  36. 2026-08-04 01:39 UTCEG score recompute
  37. 2026-08-04 01:39 UTCGHSA enrichment
  38. 2026-08-03 10:35 UTCEPSS rescore
  39. 2026-08-02 17:58 UTCEG score recompute
  40. 2026-08-02 17:58 UTCGHSA enrichment
  41. 2026-08-02 02:26 UTCEPSS rescore
  42. 2026-08-01 04:15 UTCEPSS rescore
  43. 2026-07-30 16:27 UTCEPSS rescore
  44. 2026-07-30 01:29 UTCEPSS rescore
  45. 2026-07-28 15:35 UTCEPSS rescore
  46. 2026-07-27 14:12 UTCEPSS rescore
  47. 2026-07-27 13:46 UTCEG score recompute
  48. 2026-07-27 13:46 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2025-2399?
CVE-2025-2399 is a medium vulnerability published on March 10, 2026. Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Mitsubishi Electric CNC M800V Series M800VW and M800VS, M80V Series M80V and M80VW, M800 Series M800W and M800S, M80 Series M80 and M80W, E80 Series E80, C80 Series C80, and M700V Series M750VW, M720VW, 730VW,…
When was CVE-2025-2399 disclosed?
CVE-2025-2399 was first published in the National Vulnerability Database on March 10, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-2399 actively exploited?
CVE-2025-2399 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 56.6% of all scored CVEs.
What is the CVSS score of CVE-2025-2399?
CVE-2025-2399 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2025-2399?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-2399, 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.

Dependency Blast Radius

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