Security readout for executives and security teams
Plain-English summary
CVE-2021-44453 is a critical command injection flaw in mySCADA myPRO. A vulnerable debug interface includes a ping utility that may let an unauthenticated network attacker run arbitrary operating system commands. For industrial systems, that can threaten confidentiality, integrity, and availability.
Executive priority
Treat this as urgent for any operational environment running mySCADA myPRO. The flaw can allow remote command execution without credentials, so exposure should be identified quickly and remediated or isolated according to vendor guidance.
Technical view
The issue is CWE-78 OS command injection in mySCADA myPRO versions 8.20.0 and prior, according to the CVE description. The CVSS 3.1 score is 10.0 with network access, low complexity, no privileges, no user interaction, scope change, and high impact across CIA.
Likely exposure
Organizations using mySCADA myPRO 8.20.0 or earlier are potentially exposed, especially where the affected debug interface is reachable over a network. The provided affected metadata also says “All,” so teams should verify exact product versions against vendor and CISA guidance.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Risk remains high because the CVSS vector indicates unauthenticated remote exploitation with low complexity and full confidentiality, integrity, and availability impact.
Researcher notes
Evidence is limited to the CVE metadata and CISA advisory reference in the bundle. Do not assume active exploitation or a specific fixed release from these sources alone. The main technical indicators are CWE-78, affected myPRO 8.20.0 and prior, and CVSS 10.0.
Mitigation direction
- Identify all mySCADA myPRO deployments and versions.
- Check the CISA advisory and mySCADA guidance for fixed versions or workarounds.
- Limit network reachability to myPRO administrative or debug interfaces.
- Prioritize remediation for internet-facing or cross-zone reachable systems.
- Increase monitoring around affected myPRO hosts until remediated.
Validation and detection
- Confirm whether any environment runs mySCADA myPRO 8.20.0 or earlier.
- Inventory exposed myPRO interfaces from asset management and network records.
- Review logs for suspicious use of debug or ping functionality.
- Verify remediation status against vendor or CISA guidance.
- Document compensating controls where immediate remediation is not possible.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-44453 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 10 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H3.96Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-01CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.