Out-of-bounds Read in N/a

CVE-2026-67857

open62541 1.5.5 contains an out-of-bounds read in the client-side function responseReadNamespacesArray() in src/client/ua_client_connect.c.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

Frequently asked questions

What is CVE-2026-67857?: CVE-2026-67857 is a high-severity vulnerability in N/a, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2026-08-04.
How severe is CVE-2026-67857?: High severity. CVSS v3 base score is 7.5 out of 10.