{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-65423 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-65423 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-65423 is a high-severity vulnerability in o6 Automation open62541, published on 30 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-65423 and fix it if it is affected.\n\nWhat it is: CVE-2026-65423 is a high-severity vulnerability in o6 Automation open62541, published on 30 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-65423 in the wild and no public exploit code.\n\nAffected product: o6 Automation 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-2026-65423/ (Markdown: https://insights.sbomify.com/CVE-2026-65423/index.md)","id":"CVE-2026-65423","markdown":"https://insights.sbomify.com/CVE-2026-65423/index.md","name":"CVE-2026-65423","record":{"aliases":["DEBIAN-CVE-2026-65423","GHSA-hmp2-mjrw-2c5w","UBUNTU-CVE-2026-65423"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"OPC UA library","requires_auth":"low_privilege","summary":"A remote attacker can trigger an out-of-bounds write via integer overflow in open62541, potentially leading to code execution or denial of service.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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":"An integer overflow in the UA_Variant arrayDimensions product \ncomputation in open62541 may allow a remote attacker to trigger an \nout-of-bounds write.","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":"o6 Automation open62541 Integer Overflow or Wraparound","id":"CVE-2026-65423","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"Joomla Extension - regularlabs.com - MaxMind Credential leakage in GeoIP extension","id":"CVE-2026-65430"},"packages":[],"prev":{"headline":"Missing authorization in Genetec Security Center","id":"CVE-2026-65422"},"products":["open62541"],"published":"2026-07-30","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":"2026-08-24","vendors":["o6 Automation"]},"summary":"A remote attacker can trigger an out-of-bounds write via integer overflow in open62541, potentially leading to code execution or denial of service.","url":"https://insights.sbomify.com/CVE-2026-65423/"}