What is CVE-2021-42371?

CVE-2021-42371 is a critical-severity vulnerability in Xorux Lpar2rrd, classified under CWE-922. CVSS score: 9.8/10. Published 2021-11-08.

How severe is CVE-2021-42371?

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

Vulnerability in Xorux Lpar2rrd

CVE-2021-42371

lpar2rrd is a hardcoded system account in XoruX LPAR2RRD and STOR2RRD before 7.30.

Published 2021-11-08 · 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: 0.016 (74.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.016 · change: +0.001

Affected products

Weakness classification (CWE)

CWE-922

References

stor2rrd.com/note730.php (Release Notes, Vendor Advisory)
lpar2rrd.com/note730.php (Release Notes, Vendor Advisory)
github.com/orangecertcc/security-research/security/advisories/GHSA-p2fq-9h5j-x6… (Third Party Advisory)

Frequently asked questions

What is CVE-2021-42371?: CVE-2021-42371 is a critical-severity vulnerability in Xorux Lpar2rrd, classified under CWE-922. CVSS score: 9.8/10. Published 2021-11-08.
How severe is CVE-2021-42371?: Critical severity. CVSS v3 base score is 9.8 out of 10.