What is CVE-2019-17383?

CVE-2019-17383 is a critical-severity vulnerability in Netaddr Project, classified under Incorrect Default Permissions. CVSS score: 9.8/10. Published 2019-10-09.

How severe is CVE-2019-17383?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Netaddr Project

CVE-2019-17383

The netaddr gem before 2.0.4 for Ruby has misconfigured file permissions, such that a gem install may result in 0777 permissions in the target filesystem.

Published 2019-10-09 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.023 (82.7th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Netaddr Project

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

rubygems.org/gems/netaddr/versions (Product)
github.com/dspinhirne/netaddr-rb/commit/3aac46c00a36e71905eaa619cb94d45bff6e3b51 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2019-17383?: CVE-2019-17383 is a critical-severity vulnerability in Netaddr Project, classified under Incorrect Default Permissions. CVSS score: 9.8/10. Published 2019-10-09.
How severe is CVE-2019-17383?: Critical severity. CVSS v3 base score is 9.8 out of 10.