CVE-2026-82623

A flaw was found in open62541. A remote attacker could exploit a use-after-free vulnerability in the UADataValuebackendcopyRange function within the History Backend component. This flaw could lead to a denial of service, making the affected system unavailable. Mitigation Update open62541 to versi...

CVE-2026-82623

A vulnerability was detected in open62541 up to 1.5.5. Affected by this vulnerability is the function UADataValuebackendcopyRange of the file plugins/historydata/uahistorydatabackendmemory.c of the component History Backend. The manipulation results in use after free. The attack can be launched...

UBUNTU-CVE-2026-82623

A vulnerability was detected in open62541 up to 1.5.5. Affected by this vulnerability is the function UADataValuebackendcopyRange of the file plugins/historydata/uahistorydatabackendmemory.c of the component History Backend. The manipulation results in use after free. The attack can be launched...

EUVD-2026-68367

A vulnerability was detected in open62541 up to 1.5.5. Affected by this vulnerability is the function UADataValuebackendcopyRange of the file plugins/historydata/uahistorydatabackendmemory.c of the component History Backend. The manipulation results in use after free. The attack can be launched...

CVE-2026-82623

A vulnerability was detected in open62541 up to 1.5.5. Affected by this vulnerability is the function UADataValuebackendcopyRange of the file plugins/historydata/uahistorydatabackendmemory.c of the component History Backend. The manipulation results in use after free. The attack can be launched...

CVE-2026-82623 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 UADataValuebackendcopyRange of the file plugins/historydata/uahistorydatabackendmemory.c of the component History Backend. The manipulation results in use after free. The attack can be launched...

CVE-2026-82623 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 UADataValuebackendcopyRange of the file plugins/historydata/uahistorydatabackendmemory.c of the component History Backend. The manipulation results in use after free. The attack can be launched...

CVE-2026-82623

CVE-2026-82623 affects open62541 versions up to 1.5.5 , specifically the function UA_DataValue_backend_copyRange in the file plugins/historydata/ua_history_data_backend_memory.c of the History Backend component. The root cause is a use-after-free that can be triggered remotely without privileges ...

Linux Distros Unpatched Vulnerability : CVE-2026-82623

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A vulnerability was detected in open62541 up to 1.5.5. Affected by this vulnerability is the function UADataValuebackendcopyRange of the file...

ANT-2026-PJV7Z0AR · open62541 · Integer Overflow

integer-overflow high CVE-2026-63559 CVE-2026-65423 Severity Claude high · Security research firm high · Maintainer high Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Trail of Bits. ANT-2026-PJV7Z0AR: Integer...

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...