Stack-based buffer overflow in WECON PI Studio HMI
Priority MEDIUM 48CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
WECON Technology Co., Ltd. PI Studio HMI versions 4.1.9 and prior and PI Studio versions 4.2.34 and prior have a stack-based buffer overflow vulnerability which may allow remote code execution.
Why it matters now
EPSS 0.03494 89th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| WECON | PI Studio HMI | up to 4.1.9 | — | No fix listed | CNA |
| WECON | PI Studio | up to 4.2.34 | — | No fix listed | CNA |
- PI Studio HMI VendorWECON Affected up to 4.1.9 Fixed in — No fix listed CNA
- PI Studio VendorWECON Affected up to 4.2.34 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:we-con:pi_studio:*:*:*:*:*:*:*:* | up to 4.2.34 | Vulnerable | WECON Technology Co., Ltd. |
| cpe:2.3:a:we-con:pi_studio_hmi:*:*:*:*:*:*:*:* | up to 4.1.9 | Vulnerable | WECON Technology Co., Ltd. |
- cpe:2.3:a:we-con:pi_studio:*:*:*:*:*:*:*:* Versions up to 4.2.34 Vulnerable ·WECON Technology Co., Ltd.
- cpe:2.3:a:we-con:pi_studio_hmi:*:*:*:*:*:*:*:* Versions up to 4.1.9 Vulnerable ·WECON Technology Co., Ltd.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-14818
- 2026-10-03 Alias added: GHSA-mq6h-9xw9-9gqm
References
More WECON vulnerabilities
- TI-2016-05016 Stack-based buffer overflow in WECON LeviStudio allows remote attackers to execute arbitrary code via a crafted file. CVSS 3.0HIGH 7.8
- TI-2016-03902 Heap-based buffer overflow in WECON LeviStudio allows remote attackers to execute arbitrary code via a crafted file. CVSS 3.1HIGH 7.8
- TI-2021-05929 Stack-based buffer overflow in WECON LeviStudioU CVSS 3.1HIGH 7.8
- TI-2021-05938 Heap-based buffer overflow in WECON LeviStudioU CVSS 3.1HIGH 7.8
- TI-2018-10640 Out-of-bounds write in WECON PI Studio HMI CVSS 3.0HIGH 8.8
- TI-2021-19739 Stack-based buffer overflow in WECON LeviStudioU CVSS 3.1HIGH 7.8
Sources
- CVE-2018-14818 · CVE Program
- CVE-2018-14818 · NVD
- FIRST EPSS
- GHSA-mq6h-9xw9-9gqm · GitHub Advisory Database · CC BY 4.0
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