Stack-based buffer overflow in WECON PLC Editor
Priority MEDIUM 42CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- 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 PLC Editor Versions 1.3.8 and prior has a stack-based buffer overflow vulnerability has been identified that may allow arbitrary code execution.
Why it matters now
EPSS 0.01825 78th 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 PLC Editor | PLC Editor Versions 1.3.8 and prior | — | No fix listed | CNA |
- WECON PLC Editor Vendor— Affected PLC Editor Versions 1.3.8 and prior Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:we-con:plc_editor:*:*:*:*:*:*:*:* | up to 1.3.8 | Vulnerable | WECON Technology Co., Ltd. |
- cpe:2.3:a:we-con:plc_editor:*:*:*:*:*:*:*:* Versions up to 1.3.8 Vulnerable ·WECON Technology Co., Ltd.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-25177
- 2026-10-03 Alias added: GHSA-qr9g-4j4m-2f7q
References
More WECON Technology Co., Ltd. Plc Editor vulnerabilities
- TI-2020-15423 Heap-based buffer overflow in WECON PLC Editor CVSS 3.1HIGH 8.8
- TI-2019-13255 Stack-based buffer overflow in WECON PLC Editor CVSS 3.1HIGH 7.8
- TI-2021-18920 Out-of-bounds write in WECON PLC Editor CVSS 3.1HIGH 7.8
- TI-2021-18918 Stack-based buffer overflow in WECON PLC Editor CVSS 3.1HIGH 7.8
- TI-2018-10622 Stack-based buffer overflow in WECON PLC Editor CVSS 3.0MEDIUM 6.3
Sources
- CVE-2020-25177 · CVE Program
- CVE-2020-25177 · NVD
- FIRST EPSS
- GHSA-qr9g-4j4m-2f7q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences