CVE-2026-14684

LOWPre-NVD 3.33.3—
EchelonGraph scoreMEDIUM 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
Elevated
3.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 3.3Exploit: Elevated riskExposed services: Not assessed

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
3.3LOWmedium confidence
EG Risk
31
EG Risk 31/100

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
Severity33% × 45%
Exploitation40% × 40%
Automatability0% × 15%
EPSS PROB
0.2%
EPSS %ILE
4th
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 / EcosystemFix (by version range) / 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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
hdrhistogram2.1.11-1, 2.2.2-1
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
hdrhistogram2.1.11-1, 2.2.2-1
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
hdrhistogram2.1.11-1, 2.2.2-1
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
hdrhistogram2.1.11-1
  • every version up to 2.2.2-1: fixed in 2.2.2-1
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 5× 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.

Showing the most recent 100 of 132 total refreshes for this CVE.

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

Related CVEs(same product + 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 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 0.2% probability of exploitation in the next 30 days (4th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-14684?
CVE-2026-14684 has a CVSS base score of 3.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-14684?
A fix for CVE-2026-14684 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-14684 are linked in the Vendor Advisories panel on this page.

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