CVE-2026-67868

A heap-based out-of-bounds write vulnerability exists in S2OPC 1.7.3 in server-side EventFilter handling during CreateMonitoredItems processing. This allows a remote attacker to execute arbitrary code.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/gff-cw/information/issues/16
https://github.com/systerel/S2OPC/blob/b4c5c7d63cd69698461d514b905a7c92b3c377c4/src/ClientServer/services/b2c/monitored_item_event_filter_treatment_bs.c
https://github.com/systerel/S2OPC/blob/b4c5c7d63cd69698461d514b905a7c92b3c377c4/src/ClientServer/services/b2c/monitored_item_event_filter_where_clause_bs.c
https://github.com/systerel/S2OPC/tree/S2OPC_Toolkit_1.7.3/samples/ClientServer/demo_server_alarms
https://gitlab.com/systerel/S2OPC/-/work_items/1779
https://github.com/gff-cw/information/issues/16

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-17 22:17

Updated : 2026-09-09 16:04

NVD link : CVE-2026-67868

Mitre link : CVE-2026-67868

CVE.ORG link : CVE-2026-67868

JSON object : View

Products Affected

No product.

CWE

CWE-122

Heap-based Buffer Overflow

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