peter bassill · operator
$ cve CVE-2011-5331 JSON

CVE-2011-5331

9.8
CRITICAL · CVSS 3.1 · EPSS 2.7% (pctl 86)

In your normal cycle

Critical by CVSS (9.8), but no sign of active exploitation.

Description

Distributed Ruby (aka DRuby) 1.8 mishandles instance_eval.

Scoring

CVSS9.8 (CRITICAL, v3.1)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS2.75% — more likely to be exploited than 86% of all CVEs
On CISA KEVno
Public exploitnone known
Published2019-11-18
Last modified2026-06-16

Affected (1)

VendorProduct
distributed ruby projectdistributed ruby

References

→ the Explorer  ·  watch your stack  ·  NVD