CVE-2026-67869

high

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

References

https://github.com/open62541/open62541/issues/8171

https://github.com/open62541/open62541/blob/v1.5.5/src/server/ua_subscription_alarms_conditions.c

https://github.com/open62541/open62541/blob/v1.5.5/src/server/ua_services_method.c

https://github.com/open62541/open62541/blob/v1.5.5/examples/tutorial_server_alarms_conditions.c

Details

Source: Mitre, NVD

Published: 2026-08-06

Updated: 2026-08-06

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

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