PT-2026-67699

Name of the Vulnerable Software and Affected Versions Eclipse Milo versions 0.6.0 through 1.1.4 Description OPC UA server diagnostics nodes fail to enforce access authorization. This allows an anonymous client to enable diagnostics via a None/None endpoint without a certificate. Additionally, a...

EUVD-2026-48589

Stored Cross-Site Scripting CWE-79 in the OPC XML-DA server statistics in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows an unauthenticated remote attacker to execute arbitrary JavaScript in an administrator's browser session hijacking,...

CVE-2026-12496 Loytec LINX firmware: Unauthenticated stored XSS in OPC XML-DA server

Stored Cross-Site Scripting CWE-79 in the OPC XML-DA server statistics in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows an unauthenticated remote attacker to execute arbitrary JavaScript in an administrator's browser session hijacking,...

CVE-2026-12496 Loytec LINX firmware: Unauthenticated stored XSS in OPC XML-DA server

Stored Cross-Site Scripting CWE-79 in the OPC XML-DA server statistics in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows an unauthenticated remote attacker to execute arbitrary JavaScript in an administrator's browser session hijacking,...

Converging Safety and Security: IO-Link Wireless and OPC UA over 5G under PrEN 50742

The integration of wireless communication technologies in industrial automation offers greater flexibility, but also exposes safety systems to a broader threat vector. Emerging regulations, such as the draft standard prEN 50742, mandate the convergence of functional safety and cybersecurity by...

Impact of Benign Connectivity Variations on Intrusion Detection for Encrypted OPC UA Traffic in Industrial Private 5G Networks

Machine learning ML-based intrusion detection systems IDSs are increasingly used to monitor encrypted industrial communication. However, their behavior under realistic private 5G operating conditions remains insufficiently understood. This paper investigates the impact of benign connectivity...

PYSEC-2026-2385 Uncontrolled Resource Consumption in asyncua and opcua

All versions of package opcua; all versions of package asyncua are vulnerable to Denial of Service DoS due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited numb...

CVE-2026-54800

A vulnerability has been identified in CPCI85 Central Processing/Communication All versions V26.20, SICORE Base system All versions V26.20.0. The affected application ships with a default configuration that disables all OPC UA security mechanisms. This could allow an attacker to gain unauthorized...

CVE-2026-54800

A vulnerability has been identified in CPCI85 Central Processing/Communication All versions V26.20, SICORE Base system All versions V26.20.0. The affected application ships with a default configuration that disables all OPC UA security mechanisms. This could allow an attacker to gain unauthorized...

CVE-2026-54800

CVE-2026-54800 affects CPCI85 Central Processing/Communication and SICORE Base system (all versions < V26.20 /

CVE-2026-54800: Initialization of a Resource with an Insecure Default

A vulnerability has been identified in CPCI85 Central Processing/Communication All versions V26.20, SICORE Base system All versions V26.20.0. The affected application ships with a default configuration that disables all OPC UA security mechanisms. This could allow an attacker to gain unauthorized...

CVE-2026-6899

CVE-2026-6899 affects the CycloneCrypto wrapper in the S2OPC library. The check for certificate revocation only reviews the first matching CRL and ignores other valid CRLs for the same CA, potentially allowing a revoked certificate to establish a connection between an OPC UA client and server. No...

CVE-2026-6899: Improper Check for Certificate Revocation

Check for certificate revocation only considers the first matching CRL and ignores other valid CRLs of the same CA in the CycloneCrypto cryptographic wrapper of S2OPC library. It might allow connection between an OPC UA client and server using a revoked certificate...

S2OPC OPC UA Toolkit 安全漏洞

S2OPC OPC UA Toolkit is an open-source development toolkit for OPC UA communication, developed by Systerel. The S2OPC OPC UA Toolkit contains a security vulnerability. This vulnerability stems from the CycloneCrypto encryption wrapper, where certificate revocation checks only consider the first...

CVE-2025-11482

An Allocation of Resources Without Limits or Throttling vulnerability in the OPC-UA Server used in PPT30 Operating System versions before 1.8.0 may be used by an unauthenticated network-based attacker to permanently prevent legitimate users from interacting with the service...

CVE-2025-11482

An Allocation of Resources Without Limits or Throttling vulnerability in the OPC-UA Server used in PPT30 Operating System versions before 1.8.0 may be used by an unauthenticated network-based attacker to permanently prevent legitimate users from interacting with the service...

CVE-2025-11482

An Allocation of Resources Without Limits or Throttling vulnerability in the OPC-UA Server used in PPT30 Operating System versions before 1.8.0 may be used by an unauthenticated network-based attacker to permanently prevent legitimate users from interacting with the service...

EUVD-2025-209928

An Allocation of Resources Without Limits or Throttling vulnerability in the OPC-UA Server used in PPT30 Operating System versions before 1.8.0 may be used by an unauthenticated network-based attacker to permanently prevent legitimate users from interacting with the service...

CVE-2025-11482 Allocation of Resources Without Limits or Throttling in the OPC-UA Server

An Allocation of Resources Without Limits or Throttling vulnerability in the OPC-UA Server used in PPT30 Operating System versions before 1.8.0 may be used by an unauthenticated network-based attacker to permanently prevent legitimate users from interacting with the service...

CVE-2025-11482 Allocation of Resources Without Limits or Throttling in the OPC-UA Server

An Allocation of Resources Without Limits or Throttling vulnerability in the OPC-UA Server used in PPT30 Operating System versions before 1.8.0 may be used by an unauthenticated network-based attacker to permanently prevent legitimate users from interacting with the service...