CVE-2021-45819: Wordline HIDCCEMonitorSVC before v5.2.4.3 contains an unquoted service path which allows attackers to escalate

Q: How do I fix CVE-2021-45819?

hidccemonitorsvc: upgrade to 5.2.4.3. Exact commands for each OS are on this page.

Q: Is CVE-2021-45819 being exploited?

CVE-2021-45819 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-2021-45819 affect?

CVE-2021-45819 affects hidccemonitorsvc. Severity is medium (CVSS 6.4). Wordline HIDCCEMonitorSVC before v5.2.4.3 contains an unquoted service path which allows attackers to escalate privileges to the system level.

Q: How urgent is CVE-2021-45819?

Priority 25/100. No elevated risk signals yet.

Routine

MEDIUM 6.4UPGRADE

CVE-2021-45819 is a medium-severity flaw (CVSS 6.4) affecting hidccemonitorsvc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Wordline HIDCCEMonitorSVC before v5.2.4.3 contains an unquoted service path which allows attackers to escalate privileges to the system level.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.4 (Medium)
Attack vector	Local
Attack complexity	High
Privileges needed	High
User interaction	None
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-428
Published	2022-03-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: wordline

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

Am I affected?

Timeline

2022-03-03 15:15 UTCPublished CVE record published
2026-06-17 04:14 UTCUpdated Record last modified

wordline hidccemonitorsvc UPGRADE

Affected: < 5.2.4.3

Fixed in: 5.2.4.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 5.2.4.3 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade hidccemonitorsvc

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-2021-45819?

hidccemonitorsvc: upgrade to 5.2.4.3. Exact commands for each OS are on this page.

Is CVE-2021-45819 being exploited?

CVE-2021-45819 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-2021-45819 affect?

CVE-2021-45819 affects hidccemonitorsvc. Severity is medium (CVSS 6.4). Wordline HIDCCEMonitorSVC before v5.2.4.3 contains an unquoted service path which allows attackers to escalate privileges to the system level.

How urgent is CVE-2021-45819?

Priority 25/100. No elevated risk signals yet.

References

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