{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36964 exists.","fix":"No fix has been published for CVE-2020-36964 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-36964 is a high-severity denial of service vulnerability in ik80 YATinyWinFTP, published on 28 Jan 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-2020-36964 and fix it if it is affected.\n\nWhat it is: CVE-2020-36964 is a high-severity denial of service vulnerability in ik80 YATinyWinFTP, published on 28 Jan 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-2020-36964 exists.\n\nAffected product: ik80 YATinyWinFTP. 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-2020-36964/ (Markdown: https://insights.sbomify.com/CVE-2020-36964/index.md)","id":"CVE-2020-36964","markdown":"https://insights.sbomify.com/CVE-2020-36964/index.md","name":"CVE-2020-36964","record":{"aliases":["GHSA-237r-v2jq-99fc"],"analysis":{"component_type":"server_software","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Windows FTP server","requires_auth":"none","summary":"Attackers can crash the YATinyWinFTP service by sending a malformed 272-byte buffer, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","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-787","name":"Out-of-bounds Write"}],"description":"YATinyWinFTP contains a denial of service vulnerability that allows attackers to crash the FTP service by sending a 272-byte buffer with a trailing space. Attackers can exploit the service by connecting and sending a malformed command that triggers a buffer overflow and service crash.","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":"YATinyWinFTP - Denial of Service","id":"CVE-2020-36964","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":3,"next":{"headline":"docPrint Pro 8.0 - 'Add URL' Buffer Overflow (SEH Egghunter)","id":"CVE-2020-36965"},"packages":[],"prev":{"headline":"Intelbras Router RF 301K 1.1.2 - Authentication Bypass","id":"CVE-2020-36963"},"products":["YATinyWinFTP"],"published":"2026-01-28","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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-01-29","vendors":["ik80"]},"summary":"Attackers can crash the YATinyWinFTP service by sending a malformed 272-byte buffer, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2020-36964/"}