IEC104 v1.0 contains a stack-buffer overflow in the parameter Iec10x_Sta_Addr.
Priority LOW 35CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
IEC104 v1.0 contains a stack-buffer overflow in the parameter Iec10x_Sta_Addr.
Why it matters now
EPSS 0.01089 65th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:iec104_project:iec104:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | Iec104 Project |
- cpe:2.3:a:iec104_project:iec104:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Iec104 Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-20486
- 2026-10-03 Alias added: GHSA-jw2v-g6g3-9568
References
More Iec104 Project Iec104 vulnerabilities
- TI-2020-13453 A segmentation violation in the Iec104_Deal_FirmUpdate function of IEC104 v1.0 allows… CVSS 3.1HIGH 7.5
- TI-2020-13452 A segmentation violation in the Iec104_Deal_I function of IEC104 v1.0 allows attackers to… CVSS 3.1HIGH 7.5
Sources
- CVE-2020-20486 · CVE Program
- CVE-2020-20486 · NVD
- FIRST EPSS
- GHSA-jw2v-g6g3-9568 · GitHub Advisory Database · CC BY 4.0
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