CVE-2014-6438

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-17. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 4%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

The URI.decode_www_form_component method in Ruby before 1.9.2-p330 allows remote attackers to cause a denial of service (catastrophic regular expression backtracking, resource consumption, or application crash) via a crafted string.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity75% × 45%
Exploitation4% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
89.7%
KEV
Not listed

Published

September 6, 2017

Last Modified

May 13, 2026

References (8)

Vendor Advisories for CVE-2014-6438(3)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatruby4-0-main-4.0.0-33.3.hum12026-04-17redhat
redhatruby3-3-main-3.3.10-23.1.hum12026-04-09redhat
redhatruby3-4-main-3.4.8-31.1.hum12026-04-09redhat

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.

Data Freshness Timeline

(refreshed 12× in last 7d / 40× 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. 2026-07-23 01:14 UTCEG score recompute
  2. 2026-07-23 00:17 UTCEG score recompute
  3. 2026-07-22 21:55 UTCEG score recompute
  4. 2026-07-22 14:04 UTCEPSS rescore
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  30. 2026-06-11 13:57 UTCEPSS rescore
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  45. 2026-05-31 22:28 UTCEPSS rescore
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  49. 2026-05-29 13:41 UTCEPSS rescore
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  59. 2026-05-22 21:15 UTCEPSS rescore
  60. 2026-05-22 10:08 UTCEG score recompute
  61. 2026-05-22 10:08 UTCVendor advisory
  62. 2026-05-22 10:08 UTCGHSA enrichment
  63. 2026-05-21 22:39 UTCEPSS rescore
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  69. 2026-05-18 21:29 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2014-6438?
CVE-2014-6438 is a high vulnerability published on September 6, 2017. The URI.decodewwwform_component method in Ruby before 1.9.2-p330 allows remote attackers to cause a denial of service (catastrophic regular expression backtracking, resource consumption, or application crash) via a crafted string.
When was CVE-2014-6438 disclosed?
CVE-2014-6438 was first published in the National Vulnerability Database on September 6, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2014-6438 actively exploited?
CVE-2014-6438 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 89.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2014-6438?
CVE-2014-6438 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2014-6438?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2014-6438, 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.

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