Systerel S2OPC up to 1.7.3 AddNodes Service sopc_node_mgt_helper_internal.c UserAccessLevel out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k2.34-

Summaryinfo

A vulnerability categorized as problematic has been discovered in Systerel S2OPC up to 1.7.3. The affected element 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 results in out-of-bounds. This vulnerability is known as CVE-2026-78049. It is possible to launch the attack remotely. Furthermore, an exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as problematic has been found in Systerel S2OPC up to 1.7.3. Affected 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 with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability.

The advisory is available at gitlab.com. This vulnerability is traded as CVE-2026-78049. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept.

Applying the patch aafbd37d381b618312ebdf5ddf57027f62c14fdd is able to eliminate this problem. The bugfix is ready for download at gitlab.com.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.7
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: aafbd37d381b618312ebdf5ddf57027f62c14fdd

Timelineinfo

08/22/2026 Advisory disclosed
08/22/2026 +0 days VulDB entry created
08/22/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: 1787
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-78049 (🔒)
GCVE (CVE): GCVE-0-2026-78049
GCVE (VulDB): GCVE-100-394290
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/22/2026 09:50
Changes: 08/22/2026 09:50 (61)
Complete: 🔍
Submitter: Carnegie
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #881262: Systerel S2OPC 1.7.3 Heap-based Out-of-Bounds Read (by Carnegie)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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