CVE-2026-67871: n/a
A buffer overflow vulnerability exists in Systerel S2OPC version 1.7.3 that allows a remote attacker to cause a denial of service. The flaw is triggered via the AddNodes function involving the address_space_bs.c, sopc_node_mgt_helper_internal.c, and toolkit_test_server components. This vulnerability does not impact confidentiality or integrity but can disrupt availability.
AI Analysis
Technical Summary
CVE-2026-67871 describes a buffer overflow vulnerability in Systerel S2OPC 1.7.3. The issue occurs in the AddNodes functionality, specifically in the address_space_bs.c, sopc_node_mgt_helper_internal.c, and toolkit_test_server source files. Exploitation allows a remote attacker to cause a denial of service condition by triggering the overflow. The CVSS 3.1 base score is 7.5, reflecting high severity due to the network attack vector, no required privileges or user interaction, and impact limited to availability.
Potential Impact
Successful exploitation results in denial of service, impacting the availability of the Systerel S2OPC service. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently available. Until a patch is released, consider restricting network access to the affected service to trusted sources to reduce exposure.
CVE-2026-67871: n/a
Description
A buffer overflow vulnerability exists in Systerel S2OPC version 1.7.3 that allows a remote attacker to cause a denial of service. The flaw is triggered via the AddNodes function involving the address_space_bs.c, sopc_node_mgt_helper_internal.c, and toolkit_test_server components. This vulnerability does not impact confidentiality or integrity but can disrupt availability.
CVSS v3.1
Score 7.5high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-67871 describes a buffer overflow vulnerability in Systerel S2OPC 1.7.3. The issue occurs in the AddNodes functionality, specifically in the address_space_bs.c, sopc_node_mgt_helper_internal.c, and toolkit_test_server source files. Exploitation allows a remote attacker to cause a denial of service condition by triggering the overflow. The CVSS 3.1 base score is 7.5, reflecting high severity due to the network attack vector, no required privileges or user interaction, and impact limited to availability.
Potential Impact
Successful exploitation results in denial of service, impacting the availability of the Systerel S2OPC service. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently available. Until a patch is released, consider restricting network access to the affected service to trusted sources to reduce exposure.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-hp7g-qmxv-gvfg
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-67871"]
- Ecosystems
- []
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
Threat ID: 6a74cf80bf8831d5391acd82
Added to database: 08/06/2026, 18:16:32 UTC
Last enriched: 08/06/2026, 18:26:25 UTC
Last updated: 08/07/2026, 03:40:59 UTC
Views: 2
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