Is CVE-2026-67869 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-67869?

CVE-2026-67869 has a CVSS v3 severity of HIGH (7.5).

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CVE-2026-67869

Description

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