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.
History

Tue, 18 Aug 2026 21:15:00 +0000

Type Values Removed Values Added
Title Heap-based Out-of-Bounds Write in S2OPC Server Event Filter

Tue, 18 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Title Heap Out‑of‑Bounds Write in S2OPC Server EventFilter Enables Remote Code Execution
Weaknesses CWE-787

Tue, 18 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-122
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 18 Aug 2026 00:30:00 +0000

Type Values Removed Values Added
Title Heap Out‑of‑Bounds Write in S2OPC Server EventFilter Enables Remote Code Execution
Weaknesses CWE-787

Mon, 17 Aug 2026 23:45:00 +0000

Type Values Removed Values Added
First Time appeared Systerel
Systerel s2opc
Vendors & Products Systerel
Systerel s2opc

Mon, 17 Aug 2026 22:00:00 +0000


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-08-17T00:00:00.000Z

Updated: 2026-08-18T15:42:24.474Z

Reserved: 2026-07-30T00:00:00.000Z

Link: CVE-2026-67868

cve-icon Vulnrichment

Updated: 2026-08-18T15:41:54.611Z

cve-icon NVD

Status : Deferred

Published: 2026-08-17T22:17:25.790

Modified: 2026-09-09T16:04:24.933

Link: CVE-2026-67868

cve-icon Redhat

No data.