How severe is CVE-2021-38451?

CVE-2021-38451 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-38451 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-38451?

CVE-2021-38451 affects Auvesy Versiondog. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-38451?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-38451 published?

CVE-2021-38451 was published on 2021-10-22 and last updated on 2026-06-17.

CVE-2021-38451

CVE-2021-38451 is a medium-severity vulnerability in Auvesy Versiondog with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Auvesy Versiondog
Published: 2021-10-22
Last modified: 2026-06-17

Description

The affected product’s proprietary protocol CSC allows for calling numerous function codes. In order to call those function codes, the user must supply parameters. There is no sanitation on the value of the offset, which allows the client to specify any offset and read out-of-bounds data.

Frequently asked questions

What is CVE-2021-38451?: The affected product’s proprietary protocol CSC allows for calling numerous function codes. In order to call those function codes, the user must supply parameters. There is no sanitation on the value of the offset, which allows the client to specify any offset and read out-of-bounds data.
How severe is CVE-2021-38451?: CVE-2021-38451 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-38451 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-38451?: CVE-2021-38451 affects Auvesy Versiondog. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-38451?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-38451 published?: CVE-2021-38451 was published on 2021-10-22 and last updated on 2026-06-17.

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-292-01

Affected products (1)

cpe:2.3:a:auvesy:versiondog:*:*:*:*:*:*:*:*

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