CVE-2026-14684

LOWPre-NVD 3.33.3—
EchelonGraph scoreHIGH confidence

Score 3.3 from GitHub Security Advisory (severity: LOW) published 2026-07-05. a secondary CVSS source baseline 3.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
3.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 3.3Exploit: Elevated riskExposed: 0

A fix is available — apply it.

A flaw has been found in HdrHistogram up to 2.2.2. This affects the function org.HdrHistogram.AbstractHistogram.decodeFromByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. This manipulation of the argument numberOfSignificantValueDigits causes uncontrolled memory allocation. The attack can only be executed locally. The exploit has been published and may be used. The actual existence of this vulnerability is currently in question. This issue is disputed due to the potential lack of crossing of security boundaries and the pre-requisites for a successful attack.

CVSS v3
3.3
EG Score
3.3(high)
EG Risk
31(Track)
EG Risk 31/100SSVC: 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
Severity33% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

July 4, 2026

Last Modified

July 16, 2026

References (6)

Vendor Advisories for CVE-2026-14684(3)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrust-main-1.96.1-1.hum12026-07-02redhat
redhatnetavark-main-2.0.0-1.hum12026-06-18redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 39× 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. 2026-07-26 14:54 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-26 12:52 UTCEG score recompute
  4. 2026-07-26 12:52 UTCVendor advisory
  5. 2026-07-26 12:52 UTCGHSA enrichment
  6. 2026-07-25 14:17 UTCEPSS rescore
  7. 2026-07-24 14:17 UTCEPSS rescore
  8. 2026-07-23 14:18 UTCEPSS rescore
  9. 2026-07-23 03:05 UTCEG score recompute
  10. 2026-07-22 14:08 UTCEPSS rescore
  11. 2026-07-21 15:24 UTCEPSS rescore
  12. 2026-07-20 17:08 UTCEPSS rescore
  13. 2026-07-19 14:30 UTCEPSS rescore
  14. 2026-07-18 10:04 UTCEPSS rescore
  15. 2026-07-17 08:29 UTCEG score recompute
  16. 2026-07-17 08:29 UTCVendor advisory
  17. 2026-07-17 08:29 UTCGHSA enrichment
  18. 2026-07-16 17:02 UTCEPSS rescore
  19. 2026-07-16 08:27 UTCNVD updateCVSS v4 → 1.9
  20. 2026-07-16 07:53 UTCMITRE cvelistV5CVSS v4 → 4.8
  21. 2026-07-15 16:57 UTCEPSS rescore
  22. 2026-07-14 11:49 UTCVendor advisory
  23. 2026-07-14 11:49 UTCGHSA enrichment
  24. 2026-07-13 22:30 UTCEPSS rescore
  25. 2026-07-11 08:27 UTCEPSS rescore
Show 14 more
  1. 2026-07-11 07:44 UTCVendor advisory
  2. 2026-07-11 07:44 UTCGHSA enrichment
  3. 2026-07-09 19:10 UTCEPSS rescore
  4. 2026-07-08 15:15 UTCEPSS rescore
  5. 2026-07-08 15:15 UTCEPSS rescore
  6. 2026-07-08 03:41 UTCGHSA enrichment
  7. 2026-07-07 13:46 UTCEPSS rescore
  8. 2026-07-06 18:21 UTCNVD updateCVSS v4 → 1.9
  9. 2026-07-06 17:36 UTCMITRE cvelistV5CVSS v4 → 4.8
  10. 2026-07-06 16:27 UTCEPSS rescore
  11. 2026-07-06 02:23 UTCEPSS rescore
  12. 2026-07-05 00:28 UTCNVD updateCVSS v4 → 1.9
  13. 2026-07-04 23:37 UTCEG score recompute
  14. 2026-07-04 23:36 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-14684?
CVE-2026-14684 is a low vulnerability published on July 4, 2026. A flaw has been found in HdrHistogram up to 2.2.2. This affects the function org.HdrHistogram.AbstractHistogram.decodeFromByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. This manipulation of the argument numberOfSignificantValueDigits causes uncontrolled memory…
When was CVE-2026-14684 disclosed?
CVE-2026-14684 was first published in the National Vulnerability Database on July 4, 2026, with the most recent update on July 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14684 actively exploited?
CVE-2026-14684 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 97.9% of all scored CVEs.
What is the CVSS score of CVE-2026-14684?
CVE-2026-14684 has a CVSS v3 base score of 3.3 (NVD).
How do I remediate CVE-2026-14684?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14684, 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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