CVE-2026-18784: medium-severity vulnerability in o6 open62541
o6 open62541 ua_client_highlevel.c UA_Client_readNodeClassAttribute heap-based overflow
Published · Updated
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33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 4.8epss 0.2%
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.
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
Affected products
o6 · open62541public PoCs found — 1
cve_referencegithub.com/gff-cw/information/issues/11unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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