CVE-2009-5147

HIGHNVD 7.37.3—Elevated

7.3

DL::dlopen in Ruby 1.8, 1.9.0, 1.9.2, 1.9.3, 2.0.0 before patchlevel 648, and 2.1 before 2.1.8 opens libraries with tainted names.

CVSS v3: 7.3
EG Score: 7.3(medium)
EPSS: 98.1%
KEV: Not listed

Published

March 29, 2017

Last Modified

May 13, 2026

References (12)

cve@mitrehttp://seclists.org/oss-sec/2015/q3/222
cve@mitrehttp://www.securityfocus.com/bid/76060
cve@mitrehttps://access.redhat.com/errata/RHSA-2018:0583
cve@mitrehttps://bugzilla.redhat.com/show_bug.cgi?id=1248935
cve@mitrehttps://github.com/ruby/ruby/commit/4600cf725a86ce31266153647ae5aa1197b1215b
cve@mitrehttps://www.ruby-lang.org/en/news/2015/12/16/unsafe-tainted-string-usage-in-fiddle-and-dl-cve-2015-7551/
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/oss-sec/2015/q3/222
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/76060
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:0583
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1248935
af854a3a-2127-422b-91ae-364da2661108https://github.com/ruby/ruby/commit/4600cf725a86ce31266153647ae5aa1197b1215b
af854a3a-2127-422b-91ae-364da2661108https://www.ruby-lang.org/en/news/2015/12/16/unsafe-tainted-string-usage-in-fiddle-and-dl-cve-2015-7551/

Vendor Advisories for CVE-2009-5147(3)

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

Patch Availability(5)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	ruby2.3 (2.3.3-1ubuntu0.1) @ zesty	2026-05-22	ubuntu
redhat	ruby4-0-main-4.0.0-33.3.hum1	2026-04-17	redhat
redhat	ruby3-3-main-3.3.10-23.1.hum1	2026-04-09	redhat
redhat	ruby3-4-main-3.4.8-31.1.hum1	2026-04-09	redhat
redhat	rh-ruby22-ruby-0:2.2.9-19.el7	2018-03-26	redhat

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.

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 10× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 22:44 UTCepss_batch
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2026-06-05 06:07 UTCepss_batch
2026-06-05 06:07 UTCepss_batch
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2026-05-29 13:40 UTCepss_batch
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2026-05-24 16:43 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-22 21:15 UTCepss_batch

Frequently asked(5)

What is CVE-2009-5147?

CVE-2009-5147 is a high vulnerability published on March 29, 2017. DL::dlopen in Ruby 1.8, 1.9.0, 1.9.2, 1.9.3, 2.0.0 before patchlevel 648, and 2.1 before 2.1.8 opens libraries with tainted names.

When was CVE-2009-5147 disclosed?

CVE-2009-5147 was first published in the National Vulnerability Database on March 29, 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-2009-5147 actively exploited?

CVE-2009-5147 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2009-5147?

CVE-2009-5147 has a CVSS v3 base score of 7.3 (NVD).

How do I remediate CVE-2009-5147?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-5147, 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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CVE-2009-5147

📅 Published

🔄 Last Modified

🔗 References (12)

📣 Vendor Advisories for CVE-2009-5147(3)