CVE-2026-54755

CRITICALPre-NVD 9.69.6
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This critical-severity CVE scores 9.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (45th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
9.6EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.6Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, split-royalty fields decoded in core/kapp/builtInFunctions/utils.go can contain values greater than core.HundredPercent, and core/kapp/kda/create.go and core/kapp/kda/trigger.go sum those values in uint32 accumulators. Crafted values such as two 0x80000000 entries wrap the validation sum to zero and pass CheckValid100Params. Royalty payout paths in core/kapp/accounts/accounts.go, core/kapp/market/market.go, and core/kapp/ito/ito.go then credit each oversized split amount and silently discard a negative remainder, allowing ordinary asset transfers, marketplace purchases, or ITO purchases to create unbacked KLV or other assets. This issue is fixed in version 1.7.19.

CVSS v3
9.6
EG Score
9.6CRITICALmedium confidence
EG Risk
43
EG Risk 43/100

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 (value × EchelonGraph’s weight)
Severity96% × 45%
The EG Score, 9.6 of 10.
Exploitation0.6% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
45th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 28, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Oct 7, 2026
Patch available. Sources: github_commit, github_release, github.
GitHub advisoryMentions a patch (unverified)

Integer overflow in split-royalty validation enables unbounded minting of KLV (native token) · Advisory · klever-io/klever-go · GitHub

https://github.com/klever-io/klever-go/security/advisories/GHSA-cgc5-v3f2-8m2v
GitHub release Patch Available

v1.7.19 - Marketplace & SFT Mint Security Release

Patch available: klever-io/klever-go v1.7.19

https://github.com/klever-io/klever-go/releases/tag/v1.7.19
GitHub commit Patch Available

commit 8bcc600b0ac8 (klever-io/klever-go)

Patch available: klever-io/klever-go v1.7.19 (contains commit 8bcc600b0ac8)

https://github.com/klever-io/klever-go/commit/8bcc600b0ac88070740c63c7ce1c8a968dd85251

Vendor Advisories for CVE-2026-54755(1)

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

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/klever-io/klever-go—
  • every version up to 1.7.19: fixed in 1.7.19
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 59× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-10-14 09:47 UTCEG score recompute
  2. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  3. 2026-10-13 07:35 UTCEG score recompute
  4. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  5. 2026-10-12 15:56 UTCEG score recompute
  6. 2026-10-11 19:39 UTCEG score recompute
  7. 2026-10-11 16:54 UTCEG score recompute
  8. 2026-10-11 14:17 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  11. 2026-10-10 00:51 UTCEG score recompute
  12. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  13. 2026-10-09 02:39 UTCEG score recompute
  14. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  15. 2026-10-08 00:51 UTCEG score recompute
  16. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  17. 2026-10-06 15:55 UTCEG score recompute
  18. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  19. 2026-10-05 20:38 UTCEG score recompute
  20. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  21. 2026-10-05 01:20 UTCEG score recompute
  22. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  23. 2026-10-03 17:27 UTCEG score recompute
  24. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  25. 2026-10-02 21:39 UTCEG score recompute
Show 66 more
  1. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  2. 2026-10-02 00:37 UTCEG score recompute
  3. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  4. 2026-09-30 19:49 UTCEG score recompute
  5. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  6. 2026-09-29 16:22 UTCEG score recompute
  7. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  8. 2026-09-29 01:02 UTCEG score recompute
  9. 2026-09-28 14:41 UTCEG score recompute
  10. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  11. 2026-09-27 15:47 UTCEG score recompute
  12. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  13. 2026-09-26 19:25 UTCEG score recompute
  14. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  15. 2026-09-26 08:05 UTCEG score recompute
  16. 2026-09-24 16:47 UTCEG score recompute
  17. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  18. 2026-09-23 21:28 UTCEG score recompute
  19. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  20. 2026-09-22 18:17 UTCEG score recompute
  21. 2026-09-21 22:58 UTCEG score recompute
  22. 2026-09-21 00:01 UTCEG score recompute
  23. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  24. 2026-09-19 16:39 UTCEG score recompute
  25. 2026-09-18 21:28 UTCEG score recompute
  26. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  27. 2026-09-17 20:50 UTCEG score recompute
  28. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  29. 2026-09-16 14:54 UTCEG score recompute
  30. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  31. 2026-09-16 07:10 UTCEG score recompute
  32. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  33. 2026-09-15 04:07 UTCEG score recompute
  34. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  35. 2026-09-13 17:42 UTCEG score recompute
  36. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  37. 2026-09-12 18:47 UTCEG score recompute
  38. 2026-09-11 15:44 UTCEG score recompute
  39. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  40. 2026-09-11 11:48 UTCEG score recompute
  41. 2026-09-10 12:30 UTCEG score recompute
  42. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  43. 2026-09-09 00:27 UTCEG score recompute
  44. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  45. 2026-09-07 18:51 UTCEG score recompute
  46. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  47. 2026-09-06 17:33 UTCEG score recompute
  48. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  49. 2026-09-05 18:38 UTCEG score recompute
  50. 2026-09-04 15:04 UTCEG score recompute
  51. 2026-09-04 07:26 UTCEG score recompute
  52. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  53. 2026-09-02 20:24 UTCEG score recompute
  54. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  55. 2026-09-01 14:54 UTCEG score recompute
  56. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  57. 2026-09-01 07:01 UTCEG score recompute
  58. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  59. 2026-08-31 19:31 UTCEG score recompute
  60. 2026-08-31 19:08 UTCEG score recompute
  61. 2026-08-30 22:16 UTCEG score recompute
  62. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  63. 2026-08-30 03:08 UTCEG score recompute
  64. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  65. 2026-08-28 20:25 UTCEG score recompute
  66. 2026-08-28 17:11 UTCEG score recomputeFirst assessed: 9.6 CRITICAL

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-54755?
CVE-2026-54755 is a critical-severity vulnerability; its CVE record was published on August 28, 2026. Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, split-royalty fields decoded in core/kapp/builtInFunctions/utils.go can contain values greater than core.HundredPercent, and core/kapp/kda/create.go and core/kapp/kda/trigger.go sum those values in uint32…
When was the CVE record for CVE-2026-54755 published?
The CVE record for CVE-2026-54755 was published on August 28, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 9, 2026; the record at its source may have been updated since.
Is CVE-2026-54755 actively exploited?
CVE-2026-54755 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-54755?
CVE-2026-54755 has a CVSS base score of 9.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-54755?
A fix for CVE-2026-54755 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-54755 are linked in the Vendor Advisories panel on this page.

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