CVE-2021-42371: lpar2rrd is a hardcoded system account in XoruX LPAR2RRD and STOR2RRD before 7.30.

Q: How do I fix CVE-2021-42371?

lpar2rrd: upgrade to 7.30; stor2rrd: upgrade to 7.30. Exact commands for each OS are on this page.

Q: Is CVE-2021-42371 being exploited?

CVE-2021-42371 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-42371 affect?

CVE-2021-42371 affects lpar2rrd, stor2rrd. Severity is critical (CVSS 9.8). lpar2rrd is a hardcoded system account in XoruX LPAR2RRD and STOR2RRD before 7.30.

Q: How urgent is CVE-2021-42371?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADEUPGRADE

CVE-2021-42371 is a critical-severity flaw (CVSS 9.8) affecting lpar2rrd, stor2rrd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 25%)
CISA exploited list	No
Weakness	CWE-922
Published	2021-11-08
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: xorux

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-11-08 05:15 UTCPublished CVE record published
2026-06-17 04:09 UTCUpdated Record last modified

xorux lpar2rrd UPGRADE

Affected: < 7.30

Fixed in: 7.30

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy lpar2rrd || rpm -q lpar2rrd || lpar2rrd --version

2. UPGRADE to 7.30 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade lpar2rrd

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade lpar2rrd

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

xorux stor2rrd UPGRADE

Affected: < 7.30

Fixed in: 7.30

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy stor2rrd || rpm -q stor2rrd || stor2rrd --version

2. UPGRADE to 7.30 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade stor2rrd

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade stor2rrd

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-42371?

lpar2rrd: upgrade to 7.30; stor2rrd: upgrade to 7.30. Exact commands for each OS are on this page.

Is CVE-2021-42371 being exploited?

CVE-2021-42371 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-42371 affect?

CVE-2021-42371 affects lpar2rrd, stor2rrd. Severity is critical (CVSS 9.8). lpar2rrd is a hardcoded system account in XoruX LPAR2RRD and STOR2RRD before 7.30.

How urgent is CVE-2021-42371?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-54769 HIGH 8.8 UPGRADE An authenticated, read-only user can upload a file and perform a directory traversal to have the uploaded file
CVE-2025-54768 MEDIUM 5.3 UPGRADE An API endpoint that should be limited to web application administrators is hidden from, but accessible by, lo
CVE-2025-54767 MEDIUM 6.5 UPGRADE An authenticated, read-only user can kill any processes running on the Xormon Original virtual appliance as th
CVE-2021-42372 HIGH 8.8 UPGRADE UPGRADE A shell command injection in the HW Events SNMP community in XoruX LPAR2RRD and STOR2RRD before 7.30 allows au
CVE-2021-42370 HIGH 7.5 UPGRADE UPGRADE A password mismanagement situation exists in XoruX LPAR2RRD and STOR2RRD before 7.30 because cleartext informa

References

← Back to latest CVEs