Buffer Overflow Vulnerability in open62541 Affected by Remote Attacks

CVE-2026-67859

What is CVE-2026-67859?

A Buffer Overflow vulnerability exists in open62541 version 1.5.5, which can be exploited by a remote attacker. This flaw occurs in the handling of Discovery and LDS functions, potentially allowing an attacker to cause a denial of service condition. By carefully crafting requests related to Discovery services, an attacker may exploit this vulnerability, resulting in server instability or crashes. It is crucial for users of open62541 to review their configurations and apply any available patches to mitigate this risk.

References