{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-50039 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-50039 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-50039 is a high-severity memory corruption vulnerability in MZ Automation libIEC61850, published on 23 Jul 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-2026-50039 and fix it if it is affected.\n\nWhat it is: CVE-2026-50039 is a high-severity memory corruption vulnerability in MZ Automation libIEC61850, published on 23 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-50039 in the wild and no public exploit code.\n\nAffected product: MZ Automation libIEC61850. 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-2026-50039/ (Markdown: https://insights.sbomify.com/CVE-2026-50039/index.md)","id":"CVE-2026-50039","markdown":"https://insights.sbomify.com/CVE-2026-50039/index.md","name":"CVE-2026-50039","record":{"aliases":["GHSA-mv2j-6f62-xx62"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"IEC 61850 library","requires_auth":"none","summary":"A stack-based buffer overflow in libIEC61850 allows attackers to cause memory corruption via Read Requests, potentially leading to code execution or denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"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:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to cause a memory corruption via a Read Request.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Stack-based Buffer Overflow in MZ Automation libIEC61850","id":"CVE-2026-50039","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Cross-site Scripting in StoneFly Storage Concentrator","id":"CVE-2026-50040"},"packages":[],"prev":{"headline":"Apollo Pharmacy Blood Glucose Monitoring System APG-01 BT Cleartext Transmission of Sensitive Information","id":"CVE-2026-50034"},"products":["libIEC61850"],"published":"2026-07-23","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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-24","vendors":["MZ Automation"]},"summary":"A stack-based buffer overflow in libIEC61850 allows attackers to cause memory corruption via Read Requests, potentially leading to code execution or denial of service.","url":"https://insights.sbomify.com/CVE-2026-50039/"}