CVE-2026-18785o6 open62541 client_types_custom.c UA_Client_getRemoteDataTypes use after free
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No exploitation reported and no EPSS estimate yet.
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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
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
- Weakness (CWE)
- CWE-416, CWE-119
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Aug 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
o6 open62541 open62541:open62541 | ca356b088ada7dee824d1b4acd07c1ff07ce242b | CNA record |
References
- https://vuldb.com/vuln/385787vdb-entry, technical-description
- https://vuldb.com/vuln/385787/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-18785third-party-advisory
- https://vuldb.com/submit/857052third-party-advisory
- https://github.com/open62541/open62541/issues/8131issue-tracking
- https://github.com/gff-cw/information/issues/12exploit, issue-tracking
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.