HIGH
CVE-2026-67857
CVSS
7.5
Description
open62541 1.5.5 contains an out-of-bounds read in the client-side function responseReadNamespacesArray() in src/client/ua_client_connect.c.
Weakness (CWE)
CWE-125
Out-of-bounds Read
EPSS Score
0.35%
Probability of exploitation in next 30 days
28.2th percentile
References
https://github.com/gff-cw/information/issues/9
https://github.com/open62541/open62541/blob/v1.5.5/examples/client_connect.c
https://github.com/open62541/open62541/blob/v1.5.5/examples/client_connect_loop.c
https://github.com/open62541/open62541/blob/v1.5.5/src/client/ua_client_connect.c
https://github.com/open62541/open62541/issues/8104
Base CVE data derived from NVD (public domain). Enrichment by
dbcve.org
(CC-BY-4.0). Fetched via API.