Vulnerability in Distributed Ruby Project

CVE-2011-5331

Distributed Ruby (aka DRuby) 1.8 mishandles instance_eval.

EPSS: 0.027 (84.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Distributed_ruby_project Distributed_ruby — versions 1.8
N/a — versions n/a

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2011-5331?: CVE-2011-5331 is a critical-severity vulnerability in Distributed Ruby Project. CVSS score: 9.8/10. Published 2019-11-18.
How severe is CVE-2011-5331?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2011-5331 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.