What is CVE-2026-18785?

CVE-2026-18785 is a medium-severity vulnerability in O6 Open62541, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2026-08-04.

How severe is CVE-2026-18785?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Buffer overflow in O6 Open62541

CVE-2026-18785

A vulnerability was determined in o6 open62541 ca356b088ada7dee824d1b4acd07c1ff07ce242b. Impacted is the function UA_Client_getRemoteDataTypes of the file examples/custom_datatype/client_types_custom.c. Executing a manipulation can lead to…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

O6 Open62541 — versions ca356b088ada7dee824d1b4acd07c1ff07ce242b

Weakness classification (CWE)

References

cna@vuldb.com (issue-tracking, exploit)
cna@vuldb.com (issue-tracking)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)

Frequently asked questions

What is CVE-2026-18785?: CVE-2026-18785 is a medium-severity vulnerability in O6 Open62541, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2026-08-04.
How severe is CVE-2026-18785?: Medium severity. CVSS v3 base score is 5.3 out of 10.