How severe is CVE-2011-5330?

CVE-2011-5330 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2011-5330 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-5330?

CVE-2011-5330 affects Distributed Ruby Project Distributed Ruby. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-5330?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2011-5330 published?

CVE-2011-5330 was published on 2019-11-18 and last updated on 2026-06-16.

CVE-2011-5330

CVE-2011-5330 is a critical-severity vulnerability in Distributed Ruby Project Distributed Ruby with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Distributed Ruby Project Distributed Ruby
Published: 2019-11-18
Last modified: 2026-06-16

Description

Distributed Ruby (aka DRuby) 1.8 mishandles the sending of syscalls.

Frequently asked questions

What is CVE-2011-5330?: Distributed Ruby (aka DRuby) 1.8 mishandles the sending of syscalls.
How severe is CVE-2011-5330?: CVE-2011-5330 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2011-5330 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-5330?: CVE-2011-5330 affects Distributed Ruby Project Distributed Ruby. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-5330?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2011-5330 published?: CVE-2011-5330 was published on 2019-11-18 and last updated on 2026-06-16.

References

https://www.exploit-db.com/exploits/17031

Affected products (1)

cpe:2.3:a:distributed_ruby_project:distributed_ruby:1.8:*:*:*:*:*:*:*

More vulnerabilities in Distributed Ruby Project Distributed Ruby

CVE-2011-5331 — Critical (CVSS 9.8): Distributed Ruby (aka DRuby) 1.8 mishandles instance_eval.

All CVEs affecting Distributed Ruby Project Distributed Ruby →