CVE-2020-20486
IEC104 v1.0 contains a stack-buffer overflow in the parameter Iec10x_Sta_Addr.
CVE-2020-20486 is a high vulnerability (CVSS 7.5) in Iec104 Project Iec104, published August 31, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.09%, the 65th percentile. No source names a fixed version.
IEC104 v1.0 contains a stack-buffer overflow in the parameter Iec10x_Sta_Addr.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
IEC104 v1.0 contains a stack-buffer overflow in the parameter Iec10x_Sta_Addr.
- Record
CVE-2020-20486- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
IEC104 v1.0 contains a stack-buffer overflow in the parameter Iec10x_Sta_Addr.
- Record
CVE-2020-20486- Updated
- 2026-11-02
EUVDEUVD-2020-13273 No score
IEC104 v1.0 contains a stack-buffer overflow in the parameter Iec10x_Sta_Addr.
- Record
EUVD-2020-13273- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jw2v-g6g3-9568 No score
IEC104 v1.0 contains a stack-buffer overflow in the parameter Iec10x_Sta_Addr.
IEC104 v1.0 contains a stack-buffer overflow in the parameter Iec10x_Sta_Addr.
- Record
GHSA-jw2v-g6g3-9568- Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD |