CVE-2021-33008Network attack vector

Critical-function access via missing AutoBuild authentication

Published Apr 4, 2022 · Updated Apr 16, 2025

Missing authentication in AVEVA System Platform 2017 through 2020 R2 P01 allows remote authenticated users to invoke AutoBuild functions. AVEVA identifies the locus as the AutoBuild service but has not disclosed which requests omit identity verification or what operations they expose. The service is intended only for configuration on the Galaxy Repository node; with low-privileged network access, this flaw can be chained with related AutoBuild flaws for SYSTEM-level code execution or service interruption.

CVSS severity8.8
High
EPSS probability1.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in AVEVA System Platform 2017 through 2020 R2 P01 allows remote authenticated users to invoke AutoBuild functions. AVEVA identifies the locus as the AutoBuild service but has not disclosed which requests omit identity verification or what operations they expose. The service is intended only for configuration on the Galaxy Repository node; with low-privileged network access, this flaw can be chained with related AutoBuild flaws for SYSTEM-level code execution or service interruption.

The record

CVE
CVE-2021-33008
Published
Apr 4, 2022
Updated
Apr 16, 2025
Vendor
AVEVA
Product
AVEVA System Platform
Classifications
CWE-306, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 4, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2025Record 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=2017 <=2020 R2 P01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

AVEVA · AVEVA System Platformversion=2017 <=2020 R2 P01

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
8.8ICS-CERTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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.

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-306Missing Authentication for Critical Function
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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