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 use after free. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. The project closed the issue report, stating that this is not the official way to report a security vulnerability.

CVSS 4.0

1.9CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS 3.1

5.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS

0.2% chance of exploitation in the next 30 days; higher than 4% of CVEs (scores of 2026-10-25)

CWEs

CWE-119, CWE-416

Published

2026-08-04

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

References

• https://github.com/gff-cw/information/issues/12
• https://github.com/open62541/open62541/issues/8131
• https://vuldb.com/cve/CVE-2026-18785
• https://vuldb.com/submit/857052
• https://vuldb.com/vuln/385787

Check your stackJSON