CVE-2026-67870 Affecting open62541 package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published6 Aug 2026
- disclosed6 Aug 2026
Introduced: 6 Aug 2026
NewCVE-2026-67870 (opens in a new tab)How to fix?
There is no fixed version for Echo:latest open62541.
NVD Description
Note: Versions mentioned in the description apply only to the upstream open62541 package and not the open62541 package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
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.
References
- https://advisory.echohq.com/cve/CVE-2026-67870
- https://github.com/open62541/open62541/blob/v1.5.5/include/open62541/types.h
- https://github.com/open62541/open62541/blob/v1.5.5/src/server/ua_services_nodemanagement.c
- https://github.com/open62541/open62541/blob/v1.5.5/src/ua_types.c
- https://github.com/open62541/open62541/issues/8172