CVE-2026-78049

Low

Description

A vulnerability has been found in Systerel S2OPC up to 1.7.3. Impacted is the function SOPC_NodeMgtHelperInternal_AddVariableNodeAttributes of the file src/ClientServer/address_space/internal/sopc_node_mgt_helper_internal.c of the component AddNodes Service. The manipulation of the argument UserAccessLevel leads to out-of-bounds read. It is possible to initiate the attack remotely. A high degree of complexity is needed for the attack. The exploitability is considered difficult. The exploit has been disclosed to the public and may be used. The identifier of the patch is aafbd37d381b618312ebdf5ddf57027f62c14fdd. It is suggested to install a patch to address this issue.

SeverityLow

CVSS3.7

Exploit probability—

ProductSysterel S2opc

PublishedAug 22, 2026

First seenAug 22, 2026

Weakness typeCWE-125Out-of-bounds read CWE-119Memory buffer bounds error

How to fix

Patches

Affected products

Product	Affected versions	Fixed in
systerel s2opc	1.7.0, 1.7.1, 1.7.2, 1.7.3	—

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