CVE-2026-67859

Published: Aug 4, 2026Modified: Sep 3, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: MITRE (Secondary)

Description

Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Discovery/LDS handling.

Related CWEs

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References (6)

https://github.com/open62541/open62541/blob/master/examples/discovery/server_lds.c

Source: cve@mitre.org

https://github.com/open62541/open62541/blob/master/src/server/ua_discovery_mdns.c

Source: cve@mitre.org

https://github.com/open62541/open62541/blob/master/src/server/ua_services_discovery.c

Source: cve@mitre.org

https://github.com/open62541/open62541/blob/master/src/util/ua_util.c

Source: cve@mitre.org

https://github.com/open62541/open62541/issues/8095

Source: cve@mitre.org

https://github.com/open62541/open62541/issues/8095

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

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