CVE-2020-20662
libiec_iccp_mod v1.5 contains a heap-buffer-overflow in the component mms_client_example1.c.
CVE-2020-20662 is a medium vulnerability (CVSS 6.5) in Libiec Iccp Mod Project Iccp Mod, published September 30, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.85%, the 58th percentile. No source names a fixed version.
libiec_iccp_mod v1.5 contains a heap-buffer-overflow in the component mms_client_example1.c.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
libiec_iccp_mod v1.5 contains a heap-buffer-overflow in the component mms_client_example1.c.
- Record
CVE-2020-20662- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
libiec_iccp_mod v1.5 contains a heap-buffer-overflow in the component mms_client_example1.c.
- Record
CVE-2020-20662- Updated
- 2026-11-02
EUVDEUVD-2020-13447 No score
libiec_iccp_mod v1.5 contains a heap-buffer-overflow in the component mms_client_example1.c.
- Record
EUVD-2020-13447- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3grr-x99p-wpc4 No score
libiec_iccp_mod v1.5 contains a heap-buffer-overflow in the component mms_client_example1.c.
libiec_iccp_mod v1.5 contains a heap-buffer-overflow in the component mms_client_example1.c.
- Record
GHSA-3grr-x99p-wpc4- Weakness
- CWE-787
- Updated
- 2026-11-02
OSV
libiec_iccp_mod v1.5 contains a heap-buffer-overflow in the component mms_client_example1.c.
- Record
CVE-2020-20662- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |