What is CVE-2021-38455?

CVE-2021-38455 is a high-severity vulnerability in Auvesy Versiondog, classified under Improper Input Validation. CVSS score: 7.3/10. Published 2021-10-22.

How severe is CVE-2021-38455?

High severity. CVSS v3 base score is 7.3 out of 10.

Improper input validation in Auvesy Versiondog

CVE-2021-38455

The affected product’s OS Service does not verify any given parameter. A user can supply any type of parameter that will be passed to inner calls without checking the type of the parameter or the value.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2021-10-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (53.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Auvesy Versiondog — versions All

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

us-cert.cisa.gov/ics/advisories/icsa-21-292-01 (US Government Resource, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-38455?: CVE-2021-38455 is a high-severity vulnerability in Auvesy Versiondog, classified under Improper Input Validation. CVSS score: 7.3/10. Published 2021-10-22.
How severe is CVE-2021-38455?: High severity. CVSS v3 base score is 7.3 out of 10.