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 — 6 sources updated this weekElevated
3.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 3.3Exploit: NoneExposed: 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
—
EPSS
2.2%
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 11× in last 7d / 30× 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. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
  4. 2026-07-19 14:30 UTCEPSS rescore
  5. 2026-07-18 10:04 UTCEPSS rescore
  6. 2026-07-17 08:29 UTCEG score recompute
  7. 2026-07-17 08:29 UTCVendor advisory
  8. 2026-07-17 08:29 UTCGHSA enrichment
  9. 2026-07-16 17:02 UTCEPSS rescore
  10. 2026-07-16 08:27 UTCNVD updateCVSS v4 → 1.9
  11. 2026-07-16 07:53 UTCMITRE cvelistV5CVSS v4 → 4.8
  12. 2026-07-15 16:57 UTCEPSS rescore
  13. 2026-07-14 11:49 UTCVendor advisory
  14. 2026-07-14 11:49 UTCGHSA enrichment
  15. 2026-07-13 22:30 UTCEPSS rescore
  16. 2026-07-11 08:27 UTCEPSS rescore
  17. 2026-07-11 07:44 UTCVendor advisory
  18. 2026-07-11 07:44 UTCGHSA enrichment
  19. 2026-07-09 19:10 UTCEPSS rescore
  20. 2026-07-08 15:15 UTCEPSS rescore
  21. 2026-07-08 15:15 UTCEPSS rescore
  22. 2026-07-08 03:41 UTCGHSA enrichment
  23. 2026-07-07 13:46 UTCEPSS rescore
  24. 2026-07-06 18:21 UTCNVD updateCVSS v4 → 1.9
  25. 2026-07-06 17:36 UTCMITRE cvelistV5CVSS v4 → 4.8
Show 5 more
  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 02:23 UTCEPSS rescore
  3. 2026-07-05 00:28 UTCNVD updateCVSS v4 → 1.9
  4. 2026-07-04 23:37 UTCEG score recompute
  5. 2026-07-04 23:36 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

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 2.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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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