CVE-2021-38465Network attack vector

Service interruption via unbounded webinstaller file generation

Published Oct 22, 2021 · Updated Sep 16, 2024

Uncontrolled resource consumption in AUVESY versiondog 8.0 and earlier allows remote authenticated users to interrupt service. The webinstaller accepts repeated image-agent installation-generation requests and saves every resulting installation in its temporary folder without a storage limit. Access to the authenticated webinstaller interface is required; sustained requests can consume host storage and interrupt versiondog operations.

CVSS severity8.0
High
EPSS probability0.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in AUVESY versiondog 8.0 and earlier allows remote authenticated users to interrupt service. The webinstaller accepts repeated image-agent installation-generation requests and saves every resulting installation in its temporary folder without a storage limit. Access to the authenticated webinstaller interface is required; sustained requests can consume host storage and interrupt versiondog operations.

The record

CVE
CVE-2021-38465
Published
Oct 22, 2021
Updated
Sep 16, 2024
Vendor
AUVESY
Product
versiondog
Classifications
CWE-400, CWE-770, T1499
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

6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
8.0ICS-CERTCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
4.0NVDAV:N/AC:L/Au:S/C:N/I:N/A:P

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CWE-770Allocation of Resources Without Limits or Throttling
T1499Endpoint Denial of Service

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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