What is CVE-2018-21269?

CVE-2018-21269 is a medium-severity vulnerability in Openrc Project, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2020-10-27.

How severe is CVE-2018-21269?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2018-21269 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Openrc Project

CVE-2018-21269

checkpath in OpenRC through 0.42.1 might allow local users to take ownership of arbitrary files because a non-terminal path component can be a symlink.

Published 2020-10-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (30.3th percentile), scored 2026-09-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Openrc Project

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

github.com/OpenRC/openrc/issues/201 (Exploit, Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-21269?: CVE-2018-21269 is a medium-severity vulnerability in Openrc Project, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2020-10-27.
How severe is CVE-2018-21269?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2018-21269 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.