CVE-2026-63362

A flaw was found in open62541. An unsigned integer underflow in the PubSub signature verification path may allow a remote attacker to cause a denial of service by sending a specially crafted User Datagram Protocol UDP packet. This vulnerability could make the affected system unavailable to...

CVE-2026-67864

A flaw was found in open62541. A remote attacker can exploit a vulnerability in the NodeManagement type-instantiation logic component, leading to a denial of service DoS. This can make the affected system unavailable to legitimate users...

CVE-2026-67861

A flaw was found in open62541. A remote attacker can exploit a vulnerability in the UAClientgetRemoteDataTypes component to cause a denial of service DoS. This could make the affected system unavailable to legitimate users...

CVE-2026-67860

A flaw was found in open62541, an open-source OPC UA Open Platform Communications Unified Architecture toolkit. This vulnerability is a heap-based buffer overflow occurring in the default HistoryRead path when the default history database uses a memory backend. An attacker could exploit this to...

CVE-2026-18785

A flaw was found in open62541. A local attacker can exploit a use-after-free vulnerability in the UAClientgetRemoteDataTypes function by performing a specific manipulation. This could potentially lead to limited information disclosure, data corruption, or a Denial of Service DoS...

CVE-2026-67863

A flaw was found in open62541. A server-side use-after-free vulnerability exists in the local MonitoredItem callback path. This occurs when the system attempts to use a notification object after it has been deallocated. A remote attacker can exploit this vulnerability to cause a denial of service...

CVE-2026-67869

A flaw was found in open62541. A remote attacker can exploit a buffer overflow vulnerability within the ServiceCall function. This vulnerability arises from improper validation of input arguments against runtime-resolved InputArguments metadata, which can lead to a denial of service DoS. Mitigati...

EUVD-2026-53682

Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the ServiceCall validates input arguments against runtime-resolved InputArguments metadata...

EUVD-2026-53681

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...

EUVD-2026-53671

In open62541 1.5.5, a server-side use-after-free exists in the local MonitoredItem callback path. The issue occurs when UASubscriptionlocalPublish continues to use the current UANotification after a callback invokes UAServerdeleteMonitoredItem for the current local MonitoredItem. This allows a...

EUVD-2026-53673

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the NodeManagement type-instantiation logic component...

DEBIAN-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...

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...

DEBIAN-CVE-2026-67869

Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the ServiceCall validates input arguments against runtime-resolved InputArguments metadata...

CVE-2026-67869

Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the ServiceCall validates input arguments against runtime-resolved InputArguments metadata...

UBUNTU-CVE-2026-67869

Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the ServiceCall validates input arguments against runtime-resolved InputArguments metadata...

UBUNTU-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...

Linux Distros Unpatched Vulnerability : CVE-2026-67869

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the ServiceCall validates input arguments against...

Linux Distros Unpatched Vulnerability : CVE-2026-67863

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In open62541 1.5.5, a server-side use-after-free exists in the local MonitoredItem callback path. The issue occurs when UASubscriptionlocalPublish continues to...

Linux Distros Unpatched Vulnerability : CVE-2026-67870

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In open62541 v1.5.5, the server-side AddReferences implementation contains an incomplete validation flaw for non-local ExpandedNodeId targets. A remote attacker...