{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20039 exists.","fix":"No fix has been published for CVE-2016-20039 yet. Limit exposure of the affected software until one is available.","what":"CVE-2016-20039 is a high-severity memory corruption vulnerability in mamedev Mess Emulator, published on 28 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2016-20039 and fix it if it is affected.\n\nWhat it is: CVE-2016-20039 is a high-severity memory corruption vulnerability in mamedev Mess Emulator, published on 28 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20039 exists.\n\nAffected product: mamedev Mess Emulator. 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-2016-20039/ (Markdown: https://insights.sbomify.com/CVE-2016-20039/index.md)","id":"CVE-2016-20039","markdown":"https://insights.sbomify.com/CVE-2016-20039/index.md","name":"CVE-2016-20039","record":{"aliases":["GHSA-8vxc-wffq-wgmw"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Multi Emulator Super System","requires_auth":"none","summary":"Local attackers can execute arbitrary code or crash the application by supplying an oversized gamma parameter value.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"Multi Emulator Super System 0.154-3.1 contains a buffer overflow vulnerability in the gamma parameter handling that allows local attackers to crash the application or execute arbitrary code. Attackers can supply an oversized gamma parameter value to overflow the stack buffer and overwrite the instruction pointer with a controlled address to achieve code execution.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Multi Emulator Super System 0.154-3.1 Buffer Overflow","id":"CVE-2016-20039","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2016"},"n_packages":0,"n_references":3,"next":{"headline":"TiEmu 3.03-nogdb+dfsg-3 Buffer Overflow via ROM Parameter","id":"CVE-2016-20040"},"packages":[],"prev":{"headline":"yTree 1.94-1.1 Stack-Based Buffer Overflow","id":"CVE-2016-20038"},"products":["Mess Emulator"],"published":"2026-03-28","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":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-03-30","vendors":["mamedev"]},"summary":"Local attackers can execute arbitrary code or crash the application by supplying an oversized gamma parameter value.","url":"https://insights.sbomify.com/CVE-2016-20039/"}