CVE-2026-67869

HIGH

open62541 < 1.5.6 - Denial of Service via Buffer Overflow in Service_Call Input Argument Validation

Title source: llm
STIX 2.1

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 (4)

Core 4

Scores

CVSS v3 7.5
EPSS 0.0047
EPSS Percentile 38.0%
CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

Status published
Published Aug 05, 2026
Tracked Since Aug 06, 2026