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Sicherheitslücken in open62541

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für open62541: 1. Davon im KEV-Katalog: 0.

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Sicherheitslücken: 24

  1. CVE-2026-116014

    Kritisch · CVSS 9.2EPSS 0,43%Keine Korrektur veröffentlicht

    open62541 1.5.0 before 1.5.7 Integer Overflow Heap Buffer Overflow via Custom DataType

    open62541 1.5.0 before 1.5.7 contains an integer overflow in UA_DataType_fromStructureDescription() that wraps the 16-bit memSize field for large custom structure definitions. A malicious OPC UA server can supply DataType definitions via UA_Client_getRemoteDataTypes(), causing decodeBinaryStructure() to overflow the heap, crashing clients or enabling code execution.

    Veröffentlicht Aktualisiert
  2. CVE-2026-82623

    Mittel · CVSS 6.9EPSS 0,7%Keine Korrektur veröffentlicht

    open62541 History Backend ua_history_data_backend_memory.c UA_DataValue_backend_copyRange use after free

    A vulnerability was detected in open62541 up to 1.5.5. Affected by this vulnerability is the function UA_DataValue_backend_copyRange of the file plugins/historydata/ua_history_data_backend_memory.c of the component History Backend. The manipulation results in use after free. The attack can be launched remotely. The exploit is now public and may be used. The project closed the issue report, stating that this is not the official way to report a security vulnerability.

    Veröffentlicht Aktualisiert
  3. CVE-2026-67870

    Kritisch · CVSS 9.8EPSS 1,06%Keine Korrektur veröffentlicht

    CVE-2026-67870

    In open62541 v1.5.5, the server-side AddReferences implementation contains an incomplete validation flaw for non-local ExpandedNodeId targets. A remote attacker can send a crafted AddReferencesRequest with an empty targetServerUri and a non-zero targetNodeId.serverIndex, causing the target node pointer to remain NULL while execution continues.

    Veröffentlicht Aktualisiert
  4. CVE-2026-67863

    Hoch · CVSS 7.5EPSS 0,74%Keine Korrektur veröffentlicht

    CVE-2026-67863

    In open62541 1.5.5, a server-side use-after-free exists in the local MonitoredItem callback path. The issue occurs when UA_Subscription_localPublish continues to use the current UA_Notification after a callback invokes UA_Server_deleteMonitoredItem for the current local MonitoredItem. This allows a remote attacker to cause a denial of service.

    Veröffentlicht Aktualisiert
  5. CVE-2026-18785

    Mittel · CVSS 4.8EPSS 0,16%Keine Korrektur veröffentlicht

    o6 open62541 client_types_custom.c UA_Client_getRemoteDataTypes use after free

    A vulnerability was determined in o6 open62541 ca356b088ada7dee824d1b4acd07c1ff07ce242b. Impacted is the function UA_Client_getRemoteDataTypes of the file examples/custom_datatype/client_types_custom.c. Executing a manipulation can lead to use after free. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. The project closed the issue report, stating that this is not the official way to report a security vulnerability.

    Veröffentlicht Aktualisiert
  6. CVE-2026-18784

    Mittel · CVSS 4.8EPSS 0,17%Keine Korrektur veröffentlicht

    o6 open62541 ua_client_highlevel.c UA_Client_readNodeClassAttribute heap-based overflow

    A vulnerability was found in o6 open62541 up to 1.5.5. This issue affects the function UA_Client_readNodeClassAttribute of the file src/client/ua_client_highlevel.c. Performing a manipulation results in heap-based buffer overflow. Attacking locally is a requirement. The exploit has been made public and could be used. The project closed the issue report, stating that this is not the official way to report a security vulnerability.

    Veröffentlicht Aktualisiert
  7. CVE-2026-67858

    Hoch · CVSS 7.5EPSS 0,86%Keine Korrektur veröffentlicht

    CVE-2026-67858

    Buffer Overflow vulnerability exists in open62541 1.5.5 when the Local Discovery Server (LDS) is built with multicast discovery enabled through the MDNSD backend. An unauthenticated remote attacker can send a RegisterServer or RegisterServer2 request containing many unique discoveryUrls. This allows remote attackers to cause a denial of service.

    Veröffentlicht Aktualisiert

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