Stack-based buffer overflow in FATEK Automation PLC WinProladder
Priority LOW 37CWE-121Published · Updated
Key facts
- Attack vector
- Local
- 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
In PLC WinProladder Version 3.28 and prior, a stack-based buffer overflow vulnerability can be exploited when a valid user opens a specially crafted file, which may allow an attacker to remotely execute arbitrary code.
Why it matters now
EPSS 0.01299 70th 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 |
|---|---|---|---|---|---|
| FATEK Automation | PLC WinProladder | up to 3.28 | — | No fix listed | CNA |
- PLC WinProladder VendorFATEK Automation Affected up to 3.28 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:fatek:winproladder:*:*:*:*:*:*:*:* | up to 3.28 | Vulnerable | FATEK Automation |
- cpe:2.3:a:fatek:winproladder:*:*:*:*:*:*:*:* Versions up to 3.28 Vulnerable ·FATEK Automation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-16234
- 2026-10-03 Alias added: GHSA-pwwx-2gvr-j6qv
References
More FATEK Automation Winproladder vulnerabilities
- TI-2021-12600 Memory corruption in FATEK Automation WinProladder CVSS 3.1CRITICAL 9.8
- TI-2021-12598 Out-of-bounds read in FATEK Automation WinProladder CVSS 3.1CRITICAL 9.8
- TI-2021-12596 Out-of-bounds write in FATEK Automation WinProladder CVSS 3.1CRITICAL 9.8
- TI-2021-19446 Stack-based buffer overflow in FATEK Automation WinProladder CVSS 3.1HIGH 7.8
- TI-2021-19444 Out-of-bounds write in FATEK Automation WinProladder CVSS 3.1HIGH 7.8
- TI-2021-16044 Memory corruption in FATEK Automation WinProladder CVSS 3.1HIGH 7.8
Sources
- CVE-2020-16234 · CVE Program
- CVE-2020-16234 · NVD
- FIRST EPSS
- GHSA-pwwx-2gvr-j6qv · GitHub Advisory Database · CC BY 4.0
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