Buffer Overflow vulnerability in Systerel S2OPC 1.7.3 allows a remote attacker to cause a denial of service via the Alarm/Conditions wrapper when processing PublishResponse EventNotificationList data
https://gitlab.com/systerel/S2OPC/-/work_items/1781
https://github.com/systerel/S2OPC/blob/S2OPC_Toolkit_1.7.3/src/ClientServer/frontend/client_wrapper/internal/state_machine.c
https://github.com/systerel/S2OPC/blob/S2OPC_Toolkit_1.7.3/src/ClientServer/frontend/client_wrapper/alarm_conditions/libs2opc_client_alarm_conditions.c
https://github.com/systerel/S2OPC/blob/S2OPC_Toolkit_1.7.3/src/ClientServer/address_space/sopc_event_manager.c
https://github.com/gff-cw/information/issues/18
Source: Mitre, NVD
Published: 2026-08-05
Updated: 2026-08-05
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: High