CVE-2026-67866

Remote Denial of Service via Buffer Overflow in Systerel S2OPC

Published Aug 5, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
Buffer Overflow vulnerability in Systerel S2OPC 1.7.3 allows a remote attacker to cause a denial of service via the LockedStaMac_ProcessMsg_DeleteMonitoredItemsResponse and SOPC_StaMac_NewDeleteMonitoredItems in the client wrapper DeleteMonitoredItems path

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Remote Denial of Service via Buffer Overflow in Systerel S2OPC
Type Values Removed Values Added
Title Buffer Overflow in Systerel S2OPC 1.7.3 Allows Remote Denial of Service
Weaknesses CWE-120
CWE-122
Type Values Removed Values Added
Weaknesses CWE-121
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Buffer Overflow in Systerel S2OPC 1.7.3 Allows Remote Denial of Service
First Time appeared Systerel
Systerel s2opc
Weaknesses CWE-120
CWE-122
Vendors & Products Systerel
Systerel s2opc
Type Values Removed Values Added
Description Buffer Overflow vulnerability in Systerel S2OPC 1.7.3 allows a remote attacker to cause a denial of service via the LockedStaMac_ProcessMsg_DeleteMonitoredItemsResponse and SOPC_StaMac_NewDeleteMonitoredItems in the client wrapper DeleteMonitoredItems path
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 6, 2026, 12:44 PM
Reserved
Jul 30, 2026, 12:00 AM
Status
Deferred
Published
Aug 5, 2026, 11:16 PM
Modified
Oct 24, 2026, 4:10 PM