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CVE-2019-17383

30
FAUCET Score

CVE-2019-17383 describes a critical misconfiguration vulnerability in the netaddr gem for Ruby, affecting versions prior to 2.0.4, where gem installation could result in overly permissive 0777 file permissions on the target filesystem. With a CVSS score of 9.8 (Critical), this network-exploitable vulnerability requires no user interaction and could lead to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.5.0, < 1.5.3CPE matchmatch criteria
cpe:2.3:a:netaddr_project:netaddr:*:*:*:*:*:ruby:*:*
>= 2.0, < 2.0.4CPE matchmatch criteria
cpe:2.3:a:netaddr_project:netaddr:*:*:*:*:*:ruby:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.31%
Probability of exploitation in next 30 days
EPSS Percentile
81.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0231 is in the 71st percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: netaddrFixed in: 2.0.4
rubygemspatch availablevia ghsa
Product: netaddrFixed in: 1.5.3

Vendor Advisories (1)

rubygemsGHSA-49pj-69vf-c689critical

netaddr before 1.5.3 and 2.0.4 has Incorrect Default Permissions

Oct 14, 2019

References

github.com / dspinhirne/netaddr-rb/commit/3aac46c00a36e71905eaa619cb94d45bff6e3b51
PatchThird Party Advisory
rubygems.org / gems/netaddr/versions
Product