CVE-2026-67869
Medium
Elevated severity or exploit probability.
CVSS base
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS — probability of exploitation (30 days)
0.8%
55.5th percentile
CISA KEV
Not listed
Weakness / dates
CWE-120
Published 2026-08-06 · modified 2026-08-31
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/blob/v1.5.5/examples/tutorial_server_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/src/server/ua_subscription_alarms_conditions.c
- https://github.com/open62541/open62541/issues/8171
- https://github.com/open62541/open62541/issues/8171