CVE-2021-38455Network attack vector

Authenticated code execution via unchecked OS Service parameters

Published Oct 22, 2021 · Updated Sep 16, 2024

Improper input validation in AUVESY versiondog 8.0 and earlier allows remote authenticated users to execute code through OS Service calls. The OS Service forwards attacker-supplied parameters to internal calls without validating either their type or value. Exploitation requires network access, low privileges, and user interaction and can compromise system integrity or interrupt service.

CVSS severity7.3
High
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in AUVESY versiondog 8.0 and earlier allows remote authenticated users to execute code through OS Service calls. The OS Service forwards attacker-supplied parameters to internal calls without validating either their type or value. Exploitation requires network access, low privileges, and user interaction and can compromise system integrity or interrupt service.

The record

CVE
CVE-2021-38455
Published
Oct 22, 2021
Updated
Sep 16, 2024
Vendor
AUVESY
Product
versiondog
Classifications
CWE-20, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 22, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All <=8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

AUVESY · versiondogversion=All <=8.0

Published CVSS scores

7.3ICS-CERTCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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