CVE-2026-4769

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-13. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

Certain devices in the WAGO System I/O Field series activate an internal diagnostic capability during the initial startup sequence. This functionality is not formally documented and becomes accessible without authentication for a brief period in the early boot phase. During this window, an unauthenticated remote attacker can gain access to the internal system processes, resulting in full system compromise.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

July 13, 2026

Last Modified

July 13, 2026

Advisory Details (1)

Auto-updated Sep 12, 2026
No patch confirmed yet.
generic

WAGO: Early-Boot Diagnostic Exposure in WAGO System I/O Field Devices

https://www.certvde.com/en/advisories/VDE-2026-031/

Vendor Advisories for CVE-2026-4769(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 16× in last 7d / 95× 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 323 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-4769?
CVE-2026-4769 is a critical vulnerability published on July 13, 2026. Certain devices in the WAGO System I/O Field series activate an internal diagnostic capability during the initial startup sequence. This functionality is not formally documented and becomes accessible without authentication for a brief period in the early boot phase. During this window, an…
When was CVE-2026-4769 disclosed?
CVE-2026-4769 was first published in the National Vulnerability Database on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4769 actively exploited?
CVE-2026-4769 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 46.4% of all scored CVEs.
What is the CVSS score of CVE-2026-4769?
CVE-2026-4769 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-4769?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4769, 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

Explore the affected products and dependency analysis for CVE-2026-4769

Explore →

Is Your Infrastructure Affected by CVE-2026-4769?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs