CVE-2026-67869

HIGH 7.5

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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

Vendor	n/a
Product	n/a
Published	Aug 5, 2026
Last Updated	Aug 5, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/open62541/open62541/issues/8171 github.com: https://github.com/open62541/open62541/blob/v1.5.5/src/server/ua_services_method.c github.com: https://github.com/open62541/open62541/blob/v1.5.5/src/server/ua_subscription_alarms_conditions.c github.com: https://github.com/open62541/open62541/blob/v1.5.5/examples/tutorial_server_alarms_conditions.c