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Vulnerability record · CVE-2016-2337 · published 6 January 2017

CVE-2016-2337: Ruby-lang ruby vulnerability

Ruby Lang · Ruby

Type confusion exists in _cancel_eval Ruby's TclTkIp class method. Attacker passing different type of object than String as "retval" argument can cause arbitrary code execution.

9.8 CVSS 3.0 Critical EPSS 6.2% · top 6.7%
9.8CVSS 3.0 base score, v2 7.5
6.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Type confusion exists in _cancel_eval Ruby's TclTkIp class method. Attacker passing different type of object than String as "retval" argument can cause arbitrary code execution.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/91233
http://www.talosintelligence.com/reports/TALOS-2016-0031/ ExploitTechnical DescriptionThird Party AdvisoryVDB Entry
https://lists.debian.org/debian-lts-announce/2018/08/msg00028.html
https://security.gentoo.org/glsa/201710-18
http://www.securityfocus.com/bid/91233
http://www.talosintelligence.com/reports/TALOS-2016-0031/ ExploitTechnical DescriptionThird Party AdvisoryVDB Entry
https://lists.debian.org/debian-lts-announce/2018/08/msg00028.html
https://security.gentoo.org/glsa/201710-18

Track CVE-2016-2337 inside VULONE

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2016-2337), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.