CVE-2021-33013Network attack vector

Unauthenticated sensitive system information disclosure

Published May 13, 2022 · Updated Apr 16, 2025

Improper access control in mySCADA myPRO before 8.20.0 allows remote attackers to read sensitive system information without authorization. Public advisories identify access-control enforcement as the locus but do not disclose the request path, handler, or omitted authorization check. No authentication or user interaction is required, and the reported consequence is bounded to information disclosure without service interruption.

CVSS severity8.2
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

Improper access control in mySCADA myPRO before 8.20.0 allows remote attackers to read sensitive system information without authorization. Public advisories identify access-control enforcement as the locus but do not disclose the request path, handler, or omitted authorization check. No authentication or user interaction is required, and the reported consequence is bounded to information disclosure without service interruption.

The record

CVE
CVE-2021-33013
Published
May 13, 2022
Updated
Apr 16, 2025
Vendor
mySCADA Technologies
Product
myPRO
Classifications
CWE-284, CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 13, 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=unspecified <8.20.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

mySCADA Technologies · myPROversion=unspecified <8.20.0

Published CVSS scores

8.2CISACVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-862Missing Authorization
T1190Exploit Public-Facing Application

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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