CVE-2021-38473: The affected product’s code base doesn’t properly control arguments for specific functions, which could lead t

Q: How do I fix CVE-2021-38473?

versiondog: upgrade to 8.0.0. Exact commands for each OS are on this page.

Q: Is CVE-2021-38473 being exploited?

CVE-2021-38473 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-2021-38473 affect?

CVE-2021-38473 affects versiondog. Severity is high (CVSS 8.0). The affected product’s code base doesn’t properly control arguments for specific functions, which could lead to a stack overflow.

This month

HIGH 8.0UPGRADE

CVE-2021-38473 is a high-severity flaw (CVSS 8.0) affecting versiondog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The affected product’s code base doesn’t properly control arguments for specific functions, which could lead to a stack overflow.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.0 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-119, CWE-787
Published	2021-10-22
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: auvesy

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

Am I affected?

Timeline

2021-10-22 12:15 UTCPublished CVE record published
2026-06-17 04:02 UTCUpdated Record last modified

auvesy versiondog UPGRADE

Affected: < 8.0.0

Fixed in: 8.0.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 8.0.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade versiondog

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-2021-38473?

versiondog: upgrade to 8.0.0. Exact commands for each OS are on this page.

Is CVE-2021-38473 being exploited?

CVE-2021-38473 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-2021-38473 affect?

CVE-2021-38473 affects versiondog. Severity is high (CVSS 8.0). The affected product’s code base doesn’t properly control arguments for specific functions, which could lead to a stack overflow.

How urgent is CVE-2021-38473?

Priority 43/100. High severity

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References

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