{"schema_version":1,"title":"Systerel S2OPC vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 9 vulnerabilities in Systerel S2OPC: 0 in the last 7 days and 7 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-90782, was published on 13 September 2026.","url":"https://junglewise.ai/threats/technologies/s2opc","json_url":"https://junglewise.ai/threats/technologies/s2opc.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/s2opc","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":1,"all_time":9,"critical":1,"exploited":0,"last_7_days":0,"last_30_days":3,"last_90_days":7,"last_365_days":9},"latest":[{"cve":"CVE-2026-90782","cvss":5.3,"epss":0.0057,"slug":"cve-2026-90782-s2opc-null-pointer-dereference-in-notification-message-allocation","title":"S2OPC null pointer dereference in notification message allocation","severity":"medium","exploited":false,"published_at":"2026-09-13T13:16:29.41+00:00","url":"https://junglewise.ai/threats/cve-2026-90782-s2opc-null-pointer-dereference-in-notification-message-allocation"},{"cve":"CVE-2026-82619","cvss":4.3,"epss":0.0053,"slug":"cve-2026-82619-systerel-s2opc-use-after-free-in-monitored-item-event-filter","title":"Systerel S2OPC use-after-free in monitored item event filter","severity":"medium","exploited":false,"published_at":"2026-08-31T06:17:07.857+00:00","url":"https://junglewise.ai/threats/cve-2026-82619-systerel-s2opc-use-after-free-in-monitored-item-event-filter"},{"cve":"CVE-2026-82618","cvss":4.3,"epss":0.0047,"slug":"cve-2026-82618-systerel-s2opc-out-of-bounds-read-in-string-array-range-writing","title":"Systerel S2OPC out-of-bounds read in string array range writing","severity":"medium","exploited":false,"published_at":"2026-08-31T05:17:06.57+00:00","url":"https://junglewise.ai/threats/cve-2026-82618-systerel-s2opc-out-of-bounds-read-in-string-array-range-writing"},{"cve":"CVE-2026-78049","cvss":3.7,"epss":0.0062,"slug":"cve-2026-78049-systerel-s2opc-out-of-bounds-read-in-addnodes-service","title":"Systerel S2OPC out-of-bounds read in AddNodes Service","severity":"low","exploited":false,"published_at":"2026-08-22T23:16:22.723+00:00","url":"https://junglewise.ai/threats/cve-2026-78049-systerel-s2opc-out-of-bounds-read-in-addnodes-service"},{"cve":"CVE-2026-67868","cvss":9.8,"epss":0.0106,"slug":"cve-2026-67868-systerel-s2opc-heap-based-buffer-overflow-in-eventfilter-handling","title":"Systerel S2OPC heap-based buffer overflow in EventFilter handling","severity":"critical","exploited":false,"published_at":"2026-08-17T22:17:25.79+00:00","url":"https://junglewise.ai/threats/cve-2026-67868-systerel-s2opc-heap-based-buffer-overflow-in-eventfilter-handling"},{"cve":"CVE-2026-18790","cvss":3.3,"epss":0.0016,"slug":"cve-2026-18790-systerel-s2opc-out-of-bounds-read-in-deletemonitoreditemsresponse","title":"Systerel S2OPC out-of-bounds read in DeleteMonitoredItemsResponse handler","severity":"low","exploited":false,"published_at":"2026-08-04T18:16:48.95+00:00","url":"https://junglewise.ai/threats/cve-2026-18790-systerel-s2opc-out-of-bounds-read-in-deletemonitoreditemsresponse"},{"cve":"CVE-2026-18257","cvss":5.6,"slug":"cve-2026-18257-systerel-s2opc-improper-certificate-validation-in-cyclonecrypto","title":"Systerel S2OPC Improper Certificate Validation in CycloneCrypto","severity":"medium","exploited":false,"published_at":"2026-07-29T17:16:51.54+00:00","url":"https://junglewise.ai/threats/cve-2026-18257-systerel-s2opc-improper-certificate-validation-in-cyclonecrypto"},{"cve":"CVE-2026-9758","cvss":7.3,"slug":"cve-2026-9758-systerel-s2opc-improper-certificate-validation-in-trust-list-check","title":"Systerel S2OPC Improper Certificate Validation in Trust List Check","severity":"high","exploited":false,"published_at":"2026-06-10T14:16:37.767+00:00","url":"https://junglewise.ai/threats/cve-2026-9758-systerel-s2opc-improper-certificate-validation-in-trust-list-check"},{"cve":"CVE-2026-6899","cvss":5.6,"slug":"cve-2026-6899-systerel-s2opc-improper-certificate-revocation-check-in","title":"Systerel S2OPC improper certificate revocation check in CycloneCrypto","severity":"medium","exploited":false,"published_at":"2026-06-09T09:16:30.737+00:00","url":"https://junglewise.ai/threats/cve-2026-6899-systerel-s2opc-improper-certificate-revocation-check-in"}],"weekly":[{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":1,"exploited":0,"vulnerabilities":2},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":2},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[],"technology":{"hub":true,"name":"Systerel S2OPC","slug":"s2opc","vendor":{"name":"Systerel","slug":"systerel","url":"https://junglewise.ai/threats/vendors/systerel"},"aliases":[],"category":"library","homepage":"https://www.s2opc.com/","repo_url":"https://github.com/Systerel/S2OPC","description":"An open-source implementation of the OPC UA (IEC 62541) standard in C.","url":"https://junglewise.ai/threats/technologies/s2opc"},"most_severe":[{"cve":"CVE-2026-67868","cvss":9.8,"epss":0.0106,"slug":"cve-2026-67868-systerel-s2opc-heap-based-buffer-overflow-in-eventfilter-handling","title":"Systerel S2OPC heap-based buffer overflow in EventFilter handling","severity":"critical","exploited":false,"published_at":"2026-08-17T22:17:25.79+00:00","url":"https://junglewise.ai/threats/cve-2026-67868-systerel-s2opc-heap-based-buffer-overflow-in-eventfilter-handling"},{"cve":"CVE-2026-9758","cvss":7.3,"slug":"cve-2026-9758-systerel-s2opc-improper-certificate-validation-in-trust-list-check","title":"Systerel S2OPC Improper Certificate Validation in Trust List Check","severity":"high","exploited":false,"published_at":"2026-06-10T14:16:37.767+00:00","url":"https://junglewise.ai/threats/cve-2026-9758-systerel-s2opc-improper-certificate-validation-in-trust-list-check"},{"cve":"CVE-2026-18257","cvss":5.6,"slug":"cve-2026-18257-systerel-s2opc-improper-certificate-validation-in-cyclonecrypto","title":"Systerel S2OPC Improper Certificate Validation in CycloneCrypto","severity":"medium","exploited":false,"published_at":"2026-07-29T17:16:51.54+00:00","url":"https://junglewise.ai/threats/cve-2026-18257-systerel-s2opc-improper-certificate-validation-in-cyclonecrypto"},{"cve":"CVE-2026-6899","cvss":5.6,"slug":"cve-2026-6899-systerel-s2opc-improper-certificate-revocation-check-in","title":"Systerel S2OPC improper certificate revocation check in CycloneCrypto","severity":"medium","exploited":false,"published_at":"2026-06-09T09:16:30.737+00:00","url":"https://junglewise.ai/threats/cve-2026-6899-systerel-s2opc-improper-certificate-revocation-check-in"},{"cve":"CVE-2026-90782","cvss":5.3,"epss":0.0057,"slug":"cve-2026-90782-s2opc-null-pointer-dereference-in-notification-message-allocation","title":"S2OPC null pointer dereference in notification message allocation","severity":"medium","exploited":false,"published_at":"2026-09-13T13:16:29.41+00:00","url":"https://junglewise.ai/threats/cve-2026-90782-s2opc-null-pointer-dereference-in-notification-message-allocation"},{"cve":"CVE-2026-82619","cvss":4.3,"epss":0.0053,"slug":"cve-2026-82619-systerel-s2opc-use-after-free-in-monitored-item-event-filter","title":"Systerel S2OPC use-after-free in monitored item event filter","severity":"medium","exploited":false,"published_at":"2026-08-31T06:17:07.857+00:00","url":"https://junglewise.ai/threats/cve-2026-82619-systerel-s2opc-use-after-free-in-monitored-item-event-filter"},{"cve":"CVE-2026-82618","cvss":4.3,"epss":0.0047,"slug":"cve-2026-82618-systerel-s2opc-out-of-bounds-read-in-string-array-range-writing","title":"Systerel S2OPC out-of-bounds read in string array range writing","severity":"medium","exploited":false,"published_at":"2026-08-31T05:17:06.57+00:00","url":"https://junglewise.ai/threats/cve-2026-82618-systerel-s2opc-out-of-bounds-read-in-string-array-range-writing"},{"cve":"CVE-2026-78049","cvss":3.7,"epss":0.0062,"slug":"cve-2026-78049-systerel-s2opc-out-of-bounds-read-in-addnodes-service","title":"Systerel S2OPC out-of-bounds read in AddNodes Service","severity":"low","exploited":false,"published_at":"2026-08-22T23:16:22.723+00:00","url":"https://junglewise.ai/threats/cve-2026-78049-systerel-s2opc-out-of-bounds-read-in-addnodes-service"},{"cve":"CVE-2026-18790","cvss":3.3,"epss":0.0016,"slug":"cve-2026-18790-systerel-s2opc-out-of-bounds-read-in-deletemonitoreditemsresponse","title":"Systerel S2OPC out-of-bounds read in DeleteMonitoredItemsResponse handler","severity":"low","exploited":false,"published_at":"2026-08-04T18:16:48.95+00:00","url":"https://junglewise.ai/threats/cve-2026-18790-systerel-s2opc-out-of-bounds-read-in-deletemonitoreditemsresponse"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}