CVE-2026-50039

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-23. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to cause a memory corruption via a Read Request.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

July 23, 2026

Last Modified

July 30, 2026

Advisory Details (1)

Auto-updated Jul 23, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

MZ Automation libIEC61850 | CISA

MZ Automation libIEC61850 | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/news-events/ics-advisories/icsa-26-204-06

Vendor Advisories for CVE-2026-50039(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 90× 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 187 total refreshes for this CVE.

  1. 2026-09-15 09:50 UTCEG score recompute
  2. 2026-09-15 09:50 UTCGHSA enrichment
  3. 2026-09-14 10:18 UTCGHSA enrichment
  4. 2026-09-13 23:22 UTCEG score recompute
  5. 2026-09-13 23:22 UTCGHSA enrichment
  6. 2026-09-13 16:47 UTCEPSS rescore
  7. 2026-09-13 12:26 UTCGHSA enrichment
  8. 2026-09-13 01:29 UTCEG score recompute
  9. 2026-09-13 01:29 UTCGHSA enrichment
  10. 2026-09-12 14:33 UTCGHSA enrichment
  11. 2026-09-12 03:37 UTCGHSA enrichment
  12. 2026-09-11 16:41 UTCEG score recompute
  13. 2026-09-11 16:41 UTCGHSA enrichment
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 03:07 UTCGHSA enrichment
  16. 2026-09-10 15:05 UTCEG score recompute
  17. 2026-09-10 15:05 UTCGHSA enrichment
  18. 2026-09-10 09:35 UTCEPSS rescore
  19. 2026-09-09 08:53 UTCEG score recompute
  20. 2026-09-09 08:53 UTCGHSA enrichment
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-07 21:28 UTCEG score recompute
  23. 2026-09-07 21:28 UTCGHSA enrichment
  24. 2026-09-07 16:01 UTCEPSS rescore
  25. 2026-09-06 13:47 UTCEPSS rescore
Show 75 more
  1. 2026-09-06 08:28 UTCGHSA enrichment
  2. 2026-09-05 19:27 UTCEG score recompute
  3. 2026-09-05 19:27 UTCGHSA enrichment
  4. 2026-09-05 06:57 UTCEG score recompute
  5. 2026-09-05 06:57 UTCGHSA enrichment
  6. 2026-09-04 12:58 UTCEG score recompute
  7. 2026-09-04 12:58 UTCGHSA enrichment
  8. 2026-09-04 05:06 UTCEPSS rescore
  9. 2026-09-02 14:12 UTCEPSS rescore
  10. 2026-09-01 23:20 UTCEG score recompute
  11. 2026-09-01 23:20 UTCGHSA enrichment
  12. 2026-09-01 13:54 UTCEPSS rescore
  13. 2026-09-01 04:40 UTCEPSS rescore
  14. 2026-08-30 22:20 UTCEG score recompute
  15. 2026-08-30 22:20 UTCGHSA enrichment
  16. 2026-08-30 19:17 UTCEPSS rescore
  17. 2026-08-30 11:24 UTCEG score recompute
  18. 2026-08-30 11:24 UTCGHSA enrichment
  19. 2026-08-30 01:22 UTCEPSS rescore
  20. 2026-08-30 00:28 UTCEG score recompute
  21. 2026-08-30 00:28 UTCGHSA enrichment
  22. 2026-08-28 21:41 UTCEPSS rescore
  23. 2026-08-27 21:07 UTCEG score recompute
  24. 2026-08-27 21:07 UTCGHSA enrichment
  25. 2026-08-27 14:25 UTCEPSS rescore
  26. 2026-08-27 10:09 UTCGHSA enrichment
  27. 2026-08-26 19:54 UTCEG score recompute
  28. 2026-08-26 19:54 UTCGHSA enrichment
  29. 2026-08-26 14:46 UTCEPSS rescore
  30. 2026-08-26 06:53 UTCGHSA enrichment
  31. 2026-08-25 19:28 UTCEG score recompute
  32. 2026-08-25 19:28 UTCGHSA enrichment
  33. 2026-08-25 13:49 UTCEPSS rescore
  34. 2026-08-25 08:32 UTCGHSA enrichment
  35. 2026-08-24 21:03 UTCEG score recompute
  36. 2026-08-24 21:03 UTCGHSA enrichment
  37. 2026-08-24 10:07 UTCEG score recompute
  38. 2026-08-24 10:07 UTCGHSA enrichment
  39. 2026-08-23 23:11 UTCGHSA enrichment
  40. 2026-08-23 12:15 UTCGHSA enrichment
  41. 2026-08-23 01:19 UTCEG score recompute
  42. 2026-08-23 01:19 UTCGHSA enrichment
  43. 2026-08-23 00:19 UTCEPSS rescore
  44. 2026-08-22 14:24 UTCGHSA enrichment
  45. 2026-08-22 03:13 UTCEG score recompute
  46. 2026-08-22 03:13 UTCGHSA enrichment
  47. 2026-08-21 23:49 UTCEPSS rescore
  48. 2026-08-21 16:16 UTCGHSA enrichment
  49. 2026-08-21 05:19 UTCEG score recompute
  50. 2026-08-21 05:19 UTCGHSA enrichment
  51. 2026-08-20 22:55 UTCEPSS rescore
  52. 2026-08-20 18:23 UTCGHSA enrichment
  53. 2026-08-20 07:26 UTCGHSA enrichment
  54. 2026-08-19 20:30 UTCEG score recompute
  55. 2026-08-19 20:30 UTCGHSA enrichment
  56. 2026-08-19 17:04 UTCEPSS rescore
  57. 2026-08-19 06:49 UTCGHSA enrichment
  58. 2026-08-18 19:47 UTCEG score recompute
  59. 2026-08-18 19:47 UTCGHSA enrichment
  60. 2026-08-18 13:48 UTCEPSS rescore
  61. 2026-08-18 08:51 UTCGHSA enrichment
  62. 2026-08-17 21:37 UTCEG score recompute
  63. 2026-08-17 21:37 UTCGHSA enrichment
  64. 2026-08-17 13:47 UTCEPSS rescore
  65. 2026-08-17 10:37 UTCGHSA enrichment
  66. 2026-08-16 23:42 UTCEG score recompute
  67. 2026-08-16 23:42 UTCGHSA enrichment
  68. 2026-08-16 14:56 UTCEPSS rescore
  69. 2026-08-16 12:46 UTCEG score recompute
  70. 2026-08-16 12:46 UTCGHSA enrichment
  71. 2026-08-16 02:14 UTCEPSS rescore
  72. 2026-08-16 01:50 UTCGHSA enrichment
  73. 2026-08-15 14:54 UTCGHSA enrichment
  74. 2026-08-15 03:58 UTCEG score recompute
  75. 2026-08-15 03:58 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-50039?
CVE-2026-50039 is a high vulnerability published on July 23, 2026. The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to cause a memory corruption via a Read Request.
When was CVE-2026-50039 disclosed?
CVE-2026-50039 was first published in the National Vulnerability Database on July 23, 2026, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50039 actively exploited?
CVE-2026-50039 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 61.5% of all scored CVEs.
What is the CVSS score of CVE-2026-50039?
CVE-2026-50039 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-50039?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50039, 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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