https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2020-20658.htmlhttps://patchthecve.com/cve/CVE-2020-20658.htmlWed, 17 Jun 2026 03:03:21 +0000HIGH 7.5: Buffer overflow vulnerability in fcovatti libiec_iccp_mod v1.5, allows attackers to cause a denail of service when trying to calloc an unexpectiedly large space.https://patchthecve.com/cve/CVE-2020-20657.htmlhttps://patchthecve.com/cve/CVE-2020-20657.htmlWed, 17 Jun 2026 03:03:21 +0000HIGH 7.5: Buffer overflow vulnerability in fcovatti libiec_iccp_mod v1.5, allows attackers to cause a denial of service via an unexpected packet while trying to connect.https://patchthecve.com/cve/CVE-2020-20664.htmlhttps://patchthecve.com/cve/CVE-2020-20664.htmlWed, 17 Jun 2026 03:03:22 +0000MEDIUM 6.5: libiec_iccp_mod v1.5 contains a segmentation violation in the component server_example1.c.https://patchthecve.com/cve/CVE-2020-20663.htmlhttps://patchthecve.com/cve/CVE-2020-20663.htmlWed, 17 Jun 2026 03:03:21 +0000MEDIUM 6.5: libiec_iccp_mod v1.5 contains a heap-buffer-overflow in the component mms_client_connection.c.https://patchthecve.com/cve/CVE-2020-20662.htmlhttps://patchthecve.com/cve/CVE-2020-20662.htmlWed, 17 Jun 2026 03:03:21 +0000MEDIUM 6.5: libiec_iccp_mod v1.5 contains a heap-buffer-overflow in the component mms_client_example1.c.https://patchthecve.com/cve/CVE-2020-20490.htmlhttps://patchthecve.com/cve/CVE-2020-20490.htmlWed, 17 Jun 2026 03:03:01 +0000HIGH 7.5: A heap buffer-overflow in the client_example1.c component of libiec_iccp_mod v1.5 leads to a denial of service (DOS).