{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-116014 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-116014 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-116014 is a critical vulnerability in open62541, published on 24 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-116014 and fix it if it is affected.\n\nWhat it is: CVE-2026-116014 is a critical vulnerability in open62541, published on 24 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-116014 in the wild and no public exploit code.\n\nAffected product: open62541. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-116014/ (Markdown: https://insights.sbomify.com/CVE-2026-116014/index.md)","id":"CVE-2026-116014","markdown":"https://insights.sbomify.com/CVE-2026-116014/index.md","name":"CVE-2026-116014","record":{"aliases":["DEBIAN-CVE-2026-116014","GHSA-78c3-xxg6-2pf3","UBUNTU-CVE-2026-116014"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":9.2,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"open62541 1.5.0 before 1.5.7 contains an integer overflow in UA_DataType_fromStructureDescription() that wraps the 16-bit memSize field for large custom structure definitions. A malicious OPC UA server can supply DataType definitions via UA_Client_getRemoteDataTypes(), causing decodeBinaryStructure() to overflow the heap, crashing clients or enabling code execution.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"open62541 1.5.0 before 1.5.7 Integer Overflow Heap Buffer Overflow via Custom DataType","id":"CVE-2026-116014","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"yudao-cloud through 2026.09 IDOR via after-sale-log list endpoint","id":"CVE-2026-116015"},"packages":[],"prev":{"headline":"OpenResty lua-resty-dns before 0.24 Denial of Service via DNS Response Parsing","id":"CVE-2026-116013"},"products":["open62541"],"published":"2026-10-24","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["open62541"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-116014/"}