CVE-2026-78049: Out-of-Bounds Read in Systerel S2OPC
CVE-2026-78049 is a medium severity vulnerability in Systerel S2OPC versions 1.7.0 through 1.7.3. It involves an out-of-bounds read in the function SOPC_NodeMgtHelperInternal_AddVariableNodeAttributes within the AddNodes Service component. The issue arises from improper handling of the UserAccessLevel argument. Exploitation requires a high degree of complexity and can be initiated remotely without privileges or user interaction. A patch has been identified but no official remediation level or patch availability is confirmed in the vendor advisory.
AI Analysis
Technical Summary
This vulnerability affects Systerel S2OPC up to version 1.7.3 in the AddNodes Service component, specifically in the SOPC_NodeMgtHelperInternal_AddVariableNodeAttributes function. The flaw is an out-of-bounds read caused by manipulation of the UserAccessLevel argument. Remote attackers can exploit this vulnerability, though the attack complexity is high and exploitability is difficult. The vulnerability has been publicly disclosed, and a patch commit identifier (aafbd37d381b618312ebdf5ddf57027f62c14fdd) is known, but no official vendor advisory confirming patch availability or remediation level is provided.
Potential Impact
Successful exploitation could lead to out-of-bounds memory reads, potentially exposing sensitive information or causing application instability. However, the attack complexity is high, and no privileges or user interaction are required. There are no known exploits in the wild at this time.
Mitigation Recommendations
A patch addressing this vulnerability has been identified (commit aafbd37d381b618312ebdf5ddf57027f62c14fdd). However, the vendor has not explicitly confirmed patch availability or provided an official remediation level. It is recommended to apply the patch if available or monitor the vendor's advisory for official updates. Due to the complexity of exploitation, immediate urgent action may not be required but patching is advised once confirmed.
CVE-2026-78049: Out-of-Bounds Read in Systerel S2OPC
Description
CVE-2026-78049 is a medium severity vulnerability in Systerel S2OPC versions 1.7.0 through 1.7.3. It involves an out-of-bounds read in the function SOPC_NodeMgtHelperInternal_AddVariableNodeAttributes within the AddNodes Service component. The issue arises from improper handling of the UserAccessLevel argument. Exploitation requires a high degree of complexity and can be initiated remotely without privileges or user interaction. A patch has been identified but no official remediation level or patch availability is confirmed in the vendor advisory.
CVSS v4.0
Score 6.3medium
Affected software
pkg:github/systerel/S2OPCcpe:2.3:a:systerel:s2opc:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Systerel S2OPC up to version 1.7.3 in the AddNodes Service component, specifically in the SOPC_NodeMgtHelperInternal_AddVariableNodeAttributes function. The flaw is an out-of-bounds read caused by manipulation of the UserAccessLevel argument. Remote attackers can exploit this vulnerability, though the attack complexity is high and exploitability is difficult. The vulnerability has been publicly disclosed, and a patch commit identifier (aafbd37d381b618312ebdf5ddf57027f62c14fdd) is known, but no official vendor advisory confirming patch availability or remediation level is provided.
Potential Impact
Successful exploitation could lead to out-of-bounds memory reads, potentially exposing sensitive information or causing application instability. However, the attack complexity is high, and no privileges or user interaction are required. There are no known exploits in the wild at this time.
Mitigation Recommendations
A patch addressing this vulnerability has been identified (commit aafbd37d381b618312ebdf5ddf57027f62c14fdd). However, the vendor has not explicitly confirmed patch availability or provided an official remediation level. It is recommended to apply the patch if available or monitor the vendor's advisory for official updates. Due to the complexity of exploitation, immediate urgent action may not be required but patching is advised once confirmed.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-22T07:44:38.629Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8a25c9acd9273b49994b75
Added to database: 08/22/2026, 22:42:17 UTC
Last enriched: 08/23/2026, 01:07:03 UTC
Last updated: 08/23/2026, 02:52:06 UTC
Views: 7
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