CVE-2026-82619: fallo de gravedad media en Systerel S2OPC
Systerel S2OPC subscription_mgr.c use after free
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
33Vexday Risk Score
Sin señal de explotación. Ella tiene prueba de concepto pública.
ssvc Attendcvss 5.3epss 0.5%
A vulnerability was identified in Systerel S2OPC up to 1.7.3. The impacted element is the function monitored_item_event_filter_treatment_bs__init_event_filter_ctx_and_result of the file src/ClientServer/services/bgenc/subscription_mgr.c. Such manipulation of the argument EventFilter leads to use after free. The attack may be performed from remote. The exploit is publicly available and might be used. The name of the patch is a4cee16a851b971be447a6ed531173702c722b99. It is best practice to apply a patch to resolve this issue.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Productos afectados
Systerel · S2OPCPoCs públicas encontradas — 1
cve_referencegitlab.com/systerel/S2OPC/-/work_items/1797no verificado⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
CVEs relacionadas — Systerel S2OPC
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-78049MEDIUMSysterel S2OPC AddNodes Service sopc_node_mgt_helper_internal.c out-of-boundsEPSS 0.6%CVE-2026-90782MEDIUMS2OPC through 1.7.3 NULL Pointer Dereference in alloc_notification_message_items()EPSS 0.6%CVE-2026-82618MEDIUMSysterel S2OPC String Array Range Writing sopc_builtintypes.c set_range_matrix_on_string_array out-of-boundsEPSS 0.5%CVE-2026-18790MEDIUMSysterel S2OPC DeleteMonitoredItemsRequest state_machine.c out-of-boundsEPSS 0.2%CVE-2026-18257MEDIUMImproper Certificate Validation in S2OPCEPSS 0.2%CVE-2026-9758HIGHImproper Certificate Validation in S2OPCEPSS 0.1%
Referencias
https://gitlab.com/systerel/S2OPC/-/commit/a4cee16a851b971be447a6ed531173702c722b99https://gitlab.com/systerel/S2OPC/-/merge_requests/1839https://gitlab.com/systerel/S2OPC/-/work_items/1797https://vuldb.com/cve/CVE-2026-82619https://vuldb.com/submit/893148https://vuldb.com/vuln/397119https://vuldb.com/vuln/397119/cti