CVE-2026-18784
4.8
CVSS: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
Summary
A vulnerability was found in o6 open62541 up to 1.5.5. This issue affects the function UA_Client_readNodeClassAttribute of the file src/client/ua_client_highlevel.c. Performing a manipulation results in heap-based buffer overflow. Attacking locally is a requirement. The exploit has been made public and could be used. The project closed the issue report, stating that this is not the official way to report a security vulnerability.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| o6 | open62541 | 1.5.0 | affected |
| o6 | open62541 | 1.5.1 | affected |
| o6 | open62541 | 1.5.2 | affected |
| o6 | open62541 | 1.5.3 | affected |
| o6 | open62541 | 1.5.4 | affected |
| o6 | open62541 | 1.5.5 | affected |
Weaknesses
- CWE-122: Heap-based Buffer Overflow
- CWE-119: Memory Corruption
References
- https://vuldb.com/vuln/385786
- https://vuldb.com/vuln/385786/cti
- https://vuldb.com/cve/CVE-2026-18784
- https://vuldb.com/submit/857012
- https://github.com/open62541/open62541/issues/8139
- https://github.com/gff-cw/information/issues/11
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