Security readout for executives and security teams
Plain-English summary
This flaw can crash or disrupt the IEC 61850 OPC Server component in affected Hitachi Energy SYS600 MicroSCADA products. It is availability-only but important because SYS600 is used in operational technology environments where loss of SCADA server functions can affect monitoring and control workflows.
Executive priority
Treat as high priority for affected OT environments because an unauthenticated network condition can disrupt SCADA server availability. Prioritize systems that support critical operations or are reachable across weak segmentation.
Technical view
CVE-2022-29922 is improper input validation in Hitachi Energy MicroSCADA X SYS600 and MicroSCADA Pro SYS600. A specially crafted IEC 61850 packet with a valid data item but incorrect data type can cause denial of service in the IEC 61850 OPC Server. CVSS 3.1 is 7.5, network exploitable, no authentication or user interaction required.
Likely exposure
Exposure is most likely in utilities or industrial environments running MicroSCADA Pro SYS600 9.4 FP2 Hotfix 4 or earlier, or MicroSCADA X SYS600 10 through 10.3.1, especially where the IEC 61850 OPC Server is reachable from untrusted or weakly segmented networks.
Exploitation context
The supplied sources do not show CISA KEV listing or cited active exploitation. The risk comes from unauthenticated network reachability and high availability impact, not from confirmed exploitation in the bundle.
Researcher notes
The bundle identifies CWE-20 and an availability impact only. It does not provide exploit details, proof of active exploitation, or fixed-version text beyond the Hitachi Energy advisory reference. Validation should focus on affected versions, component exposure, and vendor guidance.
Mitigation direction
- Identify all SYS600 deployments and confirm product, version, and enabled IEC 61850 OPC Server use.
- Review the Hitachi Energy advisory for supported fixes or vendor-approved mitigations.
- Apply vendor-recommended updates or mitigations through normal OT change-control processes.
- Restrict IEC 61850 OPC Server reachability to trusted control-network paths where operationally feasible.
- Increase monitoring for unexpected SYS600 OPC Server crashes or restarts.
Validation and detection
- Check asset inventory for MicroSCADA Pro SYS600 and MicroSCADA X SYS600 versions listed as affected.
- Confirm whether the IEC 61850 OPC Server component is installed, enabled, and network reachable.
- Map allowed network paths to the OPC Server from engineering, control, and external zones.
- Review operational logs for unexplained denial-of-service symptoms or service restarts.
- Document remediation status against the Hitachi Energy advisory.
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-20: Exact CWE lookup
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Open ATT&CK lookupCVE-2022-29922 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://search.abb.com/library/Download.aspx?DocumentID=8DBD000106&LanguageCode=en&DocumentPartId=&Action=LaunchCVE reference · x_refsource_CONFIRM
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 Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.