CVE-2026-67855

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

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/open62541/open62541
https://github.com/open62541/open62541/blob/master/arch/posix/eventloop_posix.c
https://github.com/open62541/open62541/blob/master/examples/encryption/server_encryption.c
https://github.com/open62541/open62541/blob/master/src/server/ua_server_internal.h
https://github.com/open62541/open62541/blob/master/src/server/ua_server_ns0_gds.c
https://github.com/open62541/open62541/issues/8093
https://github.com/open62541/open62541/issues/8093

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-04 22:17

Updated : 2026-08-31 19:33

NVD link : CVE-2026-67855

Mitre link : CVE-2026-67855

CVE.ORG link : CVE-2026-67855

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

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