EUVD-2026-52792

A vulnerability was determined in o6 open62541 ca356b088ada7dee824d1b4acd07c1ff07ce242b. Impacted is the function UAClientgetRemoteDataTypes of the file examples/customdatatype/clienttypescustom.c. Executing a manipulation can lead to use after free. It is possible to launch the attack on the loc...

CVE-2026-18785

A vulnerability was determined in o6 open62541 ca356b088ada7dee824d1b4acd07c1ff07ce242b. Impacted is the function UAClientgetRemoteDataTypes of the file examples/customdatatype/clienttypescustom.c. Executing a manipulation can lead to use after free. It is possible to launch the attack on the loc...

CVE-2026-18785

The CVE-2026-18785 issue affects the open62541 project, specifically the UA_Client_getRemoteDataTypes function in examples/custom_datatype/client_types_custom.c. A manipulation can lead to a use-after-free condition, with exploitation possible on the local host. Public disclosure of the exploit i...

CVE-2026-18785

A vulnerability was determined in o6 open62541 ca356b088ada7dee824d1b4acd07c1ff07ce242b. Impacted is the function UAClientgetRemoteDataTypes of the file examples/customdatatype/clienttypescustom.c. Executing a manipulation can lead to use after free. It is possible to launch the attack on the loc...

EUVD-2026-52789

A vulnerability was found in o6 open62541 up to 1.5.5. This issue affects the function UAClientreadNodeClassAttribute of the file src/client/uaclienthighlevel.c. Performing a manipulation results in heap-based buffer overflow. Attacking locally is a requirement. The exploit has been made public a...

CVE-2026-18784 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 UAClientreadNodeClassAttribute of the file src/client/uaclienthighlevel.c. Performing a manipulation results in heap-based buffer overflow. Attacking locally is a requirement. The exploit has been made public a...

CVE-2026-18784

A vulnerability was found in o6 open62541 up to 1.5.5. This issue affects the function UAClientreadNodeClassAttribute of the file src/client/uaclienthighlevel.c. Performing a manipulation results in heap-based buffer overflow. Attacking locally is a requirement. The exploit has been made public a...

CVE-2026-18784 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 UAClientreadNodeClassAttribute of the file src/client/uaclienthighlevel.c. Performing a manipulation results in heap-based buffer overflow. Attacking locally is a requirement. The exploit has been made public a...

CVE-2026-18784 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 UAClientreadNodeClassAttribute of the file src/client/uaclienthighlevel.c. Performing a manipulation results in heap-based buffer overflow. Attacking locally is a requirement. The exploit has been made public a...

CVE-2026-18784

The CVE affects o6 open62541 up to 1.5.5, specifically the UA_Client_readNodeClassAttribute routine in src/client/ua_client_highlevel.c. A heap-based buffer overflow is triggered by manipulation, requiring local access to exploit. The exploit has been made public. Details about affected versions ...

CVE-2026-18784

A vulnerability was found in o6 open62541 up to 1.5.5. This issue affects the function UAClientreadNodeClassAttribute of the file src/client/uaclienthighlevel.c. Performing a manipulation results in heap-based buffer overflow. Attacking locally is a requirement. The exploit has been made public a...

CVE-2026-67861

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the UAClientgetRemoteDataTypes component...

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 allow...

CVE-2026-67857

open62541 1.5.5 contains an out-of-bounds read in the client-side function responseReadNamespacesArray in src/client/uaclientconnect.c...

CVE-2026-67860

open62541 1.5.5 contains a heap-based buffer overflow in the default HistoryRead path when the default history database is used with the memory backend...

CVE-2026-67858: Buffer Copy without Checking Size of Input

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 allow...

CVE-2026-67857

open62541 1.5.5 contains an out-of-bounds read in the client-side function responseReadNamespacesArray in src/client/uaclientconnect.c...

CVE-2026-67855: Uncontrolled Resource Consumption

open62541 contains a heap use-after-free in the GDS PushManagement certificate update workflow when UAENABLEGDSPUSHMANAGEMENT is enabled. This allows a remote attacker to cause a denial of service...

CVE-2026-67860

open62541 1.5.5 contains a heap-based buffer overflow in the default HistoryRead path when the default history database is used with the memory backend...

CVE-2026-67856: Uncontrolled Resource Consumption

An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via crafted CreateSubscription, CreateMonitoredItemsSampling, Publish, TransferSubscriptions, and DeleteSubscriptions requests...