{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90782","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-13T12:01:31.544Z","datePublished":"2026-09-13T12:22:01.806Z","dateUpdated":"2026-09-14T17:26:08.686Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-13T12:22:01.806Z"},"datePublic":"2026-08-16T00:00:00.000Z","title":"S2OPC through 1.7.3 NULL Pointer Dereference in alloc_notification_message_items()","descriptions":[{"lang":"en","value":"S2OPC through 1.7.3 contains a null pointer dereference in msg_subscription_publish_bs__alloc_notification_message_items() where a failed allocation for DataChangeNotification is overwritten by a successful allocation for EventNotificationList. Attackers can trigger heap allocation failures on sessions with both data-change and event notifications to cause the server process to terminate."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"NULL Pointer Dereference","cweId":"CWE-476","type":"CWE"}]}],"affected":[{"defaultStatus":"unaffected","vendor":"Systerel","product":"S2OPC","repo":"https://gitlab.com/systerel/S2OPC","versions":[{"version":"0","lessThanOrEqual":"1.7.3","status":"affected","versionType":"custom"},{"version":"8848f051eed069b107ae7cb16a346d6f6386a8f5","status":"unaffected","versionType":"git"}]}],"metrics":[{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":5.3,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://gitlab.com/systerel/S2OPC/-/issues/1815","tags":["issue-tracking"],"name":"GitLab issue 1815"},{"url":"https://gitlab.com/systerel/S2OPC/-/commit/8848f051eed069b107ae7cb16a346d6f6386a8f5","tags":["patch"],"name":"Patch Commit"},{"url":"https://gitlab.com/systerel/S2OPC/-/blob/S2OPC_Toolkit_1.7.3/src/ClientServer/services/b2c/msg_subscription_publish_bs.c#L106-L147","tags":["technical-description"],"name":"Status clobbering and NULL dereference at S2OPC_Toolkit_1.7.3"},{"url":"https://gitlab.com/systerel/S2OPC","tags":["product"]},{"url":"https://gitlab.com/systerel/S2OPC/-/merge_requests/1862","tags":["patch"],"name":"Merge request !1862"},{"name":"VulnCheck Advisory: S2OPC through 1.7.3 NULL Pointer Dereference in alloc_notification_message_items()","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/s2opc-through-1.7.3-null-pointer-dereference-in-alloc-notification-message-items"}],"credits":[{"lang":"en","value":"Harsh Raj Singhania","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"references":[{"url":"https://gitlab.com/systerel/S2OPC/-/issues/1815","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-14T17:25:50.166515Z","id":"CVE-2026-90782","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-14T17:26:08.686Z"}}]}}