Security readout for executives and security teams
Plain-English summary
This vulnerability affects older WECON PI Studio HMI and PI Studio software. The software may read beyond intended memory when handling user-supplied data. Sources do not provide severity, CVSS, exploit status, or a specific fix in the bundle, so urgency depends on whether affected versions are present in your environment.
Executive priority
Set priority after confirming deployment. If affected versions are used in operational technology engineering workflows, remediate during the next controlled maintenance window and restrict untrusted inputs immediately.
Technical view
CVE-2018-14814 is a CWE-125 out-of-bounds read caused by improper validation of user-supplied data. Affected versions are WECON Technology PI Studio HMI 4.1.9 and prior, and PI Studio 4.2.34 and prior. The provided sources do not define attack vector, privileges, impact beyond memory read, or remediation details.
Likely exposure
Exposure is likely limited to organizations using the affected WECON PI Studio HMI or PI Studio versions. The bundle does not identify whether exposure is local, remote, file-based, or network-based, so validate by software inventory and vendor advisory review.
Exploitation context
The source bundle does not report active exploitation, public exploit availability, or inclusion in CISA KEV. Treat exploitation status as unconfirmed rather than absent, and avoid assuming internet exposure without environment evidence.
Researcher notes
Evidence is sparse in the supplied bundle. The record identifies CWE-125 and affected versions, but lacks CVSS, attack vector, proof-of-concept status, and named fix. Further analysis should start with the linked CISA advisory and vendor guidance.
Mitigation direction
- Inventory WECON PI Studio HMI and PI Studio installations.
- Check WECON or CISA advisory guidance for approved updates or mitigations.
- Prioritize remediation where affected software handles untrusted user-supplied data.
- Restrict access to affected engineering workstations until vendor guidance is applied.
- Avoid opening untrusted project or data inputs in affected versions.
Validation and detection
- Confirm installed PI Studio HMI and PI Studio version numbers.
- Compare versions against HMI 4.1.9 and prior, and PI Studio 4.2.34 and prior.
- Review the CISA advisory for vendor remediation details.
- Identify users and workstations that process externally supplied project data.
- Document whether compensating access controls are currently in place.
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-125: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2018-14814 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://ics-cert.us-cert.gov/advisories/ICSA-18-277-01CVE 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.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.