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EPSS 1.1%top 37%

CVE-2026-67868: n/a

0
Critical
Published: 08/17/2026 (08/17/2026, 00:00:00 UTC)
Source: CVE Database V5

Description

CVE-2026-67868 is a critical heap-based out-of-bounds write vulnerability in S2OPC version 1.7.3. It occurs in the server-side EventFilter handling during CreateMonitoredItems processing. This flaw allows a remote attacker to execute arbitrary code on the affected system.

CVSS v3.1

Score 9.8critical

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

Affected versions
=1.7.3

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/12/2026, 00:01:45 UTC

Technical Analysis

This vulnerability involves a heap-based out-of-bounds write in S2OPC 1.7.3 specifically during the processing of EventFilter in CreateMonitoredItems on the server side. The flaw enables remote code execution by corrupting memory, which can be exploited by an unauthenticated attacker over the network. The CVSS v3.1 base score is 9.8, indicating critical severity with network attack vector, low attack complexity, no privileges or user interaction required, and full confidentiality, integrity, and availability impact.

Potential Impact

Successful exploitation allows remote attackers to execute arbitrary code on the vulnerable server, potentially leading to full system compromise including data theft, service disruption, or further network penetration.

Mitigation Recommendations

No patch or official fix information is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, consider limiting network exposure of the affected service and applying any available workarounds recommended by the vendor.

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Technical Details

Data Version
5.2
Assigner Short Name
mitre
Date Reserved
2026-07-30T00:00:00.000Z
State
PUBLISHED

Threat ID: 6a83884ebf8831d539aac68a

Added to database: 08/17/2026, 22:16:46 UTC

Last enriched: 09/12/2026, 00:01:45 UTC

Last updated: 10/02/2026, 14:46:09 UTC

Views: 67

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