CVE-2026-55731

MEDIUMPre-NVD 6.66.6—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 75% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
6.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.6Exploit: None knownExposed: 0

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

Unchecked input for loop condition (CWE-606) in the SNMP agent in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows an unauthenticated remote attacker to cause persistent denial of service (CPU exhaustion) via a crafted SNMP GETNEXT request with a large OID component.

CVSS v3
6.6
EG Score
6.6(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity66% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

July 24, 2026

Last Modified

July 27, 2026

Advisory Details (1)

Auto-updated Jul 24, 2026
No patch confirmed yet.
generic

DIBT-CVE 20260601-0003 Unchecked input for loop condition (CWE-606) in the SNMP agent (MEDIUM)

https://www.loytec.com/support/product-security/advisories/8531-dibt-cve-20260601-0003-unchecked-input-for-loop-condition-cwe-606-in-the-snmp-agent-medium

Vendor Advisories for CVE-2026-55731(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 17× in last 7d / 72× 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 140 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-55731?
CVE-2026-55731 is a medium vulnerability published on July 24, 2026. Unchecked input for loop condition (CWE-606) in the SNMP agent in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows an unauthenticated remote attacker to cause persistent denial of service (CPU exhaustion) via a crafted SNMP GETNEXT request…
When was CVE-2026-55731 disclosed?
CVE-2026-55731 was first published in the National Vulnerability Database on July 24, 2026, with the most recent update on July 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55731 actively exploited?
CVE-2026-55731 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 75.0% of all scored CVEs.
What is the CVSS score of CVE-2026-55731?
CVE-2026-55731 has a CVSS v3 base score of 6.6 (NVD).
How do I remediate CVE-2026-55731?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55731, 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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