{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82623 exists.","fix":"No fix has been published for CVE-2026-82623 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-82623 is a medium-severity use after free vulnerability in open62541, published on 31 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-82623 and fix it if it is affected.\n\nWhat it is: CVE-2026-82623 is a medium-severity use after free vulnerability in open62541, published on 31 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82623 exists.\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-2026-82623/ (Markdown: https://insights.sbomify.com/CVE-2026-82623/index.md)","id":"CVE-2026-82623","markdown":"https://insights.sbomify.com/CVE-2026-82623/index.md","name":"CVE-2026-82623","record":{"aliases":["DEBIAN-CVE-2026-82623","GHSA-w6p5-54jx-cmmh","UBUNTU-CVE-2026-82623"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"open62541 OPC UA library","requires_auth":"none","summary":"A remote attacker can trigger a use-after-free in the open62541 History Backend, potentially leading to code execution or denial of service.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-416","name":"Use After Free"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"A vulnerability was detected in open62541 up to 1.5.5. Affected by this vulnerability is the function UA_DataValue_backend_copyRange of the file plugins/historydata/ua_history_data_backend_memory.c of the component History Backend. The manipulation results in use after free. The attack can be launched remotely. The exploit is now public and may be used. The project closed the issue report, stating that this is not the official way to report a security vulnerability.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"open62541 History Backend ua_history_data_backend_memory.c UA_DataValue_backend_copyRange use after free","id":"CVE-2026-82623","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"code-projects Simple Inventory System Database Backup File inventorymanagement.sql information disclosure","id":"CVE-2026-82624"},"packages":[],"prev":{"headline":"code-projects Employee Leave Managing System Employee Profile Update editaction.php cross site scripting","id":"CVE-2026-82622"},"products":["open62541"],"published":"2026-08-31","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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-31","vendors":["n/a"]},"summary":"A remote attacker can trigger a use-after-free in the open62541 History Backend, potentially leading to code execution or denial of service.","url":"https://insights.sbomify.com/CVE-2026-82623/"}