{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2004-0540 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2004-0540 yet. Limit exposure of the affected software until one is available.","what":"CVE-2004-0540 is a critical authentication bypass vulnerability in Microsoft Windows 2000, published on 8 Jun 2004. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2004-0540 and fix it if it is affected.\n\nWhat it is: CVE-2004-0540 is a critical authentication bypass vulnerability in Microsoft Windows 2000, published on 8 Jun 2004. 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-2004-0540 in the wild and no public exploit code.\n\nAffected product: Microsoft Windows 2000. 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-2004-0540/ (Markdown: https://insights.sbomify.com/CVE-2004-0540/index.md)","id":"CVE-2004-0540","markdown":"https://insights.sbomify.com/CVE-2004-0540/index.md","name":"CVE-2004-0540","record":{"aliases":["CVE-2003-1047","GHSA-3mqm-g7fr-36hv"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Windows 2000","requires_auth":"none","summary":"Attackers with expired passwords can bypass authentication and log in to Windows 2000 domains if the FQDN is exactly 8 characters long.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"windows_2000","vendor":"microsoft"}],"cvss":{"score":10,"severity":"critical","source":"nvd","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","version":"2.0"},"cwes":[],"description":"Microsoft Windows 2000, when running in a domain whose Fully Qualified Domain Name (FQDN) is exactly 8 characters long, does not prevent users with expired passwords from logging on to the domain.","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":"Auth bypass in n/a","id":"CVE-2004-0540","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"microsoft:windows_2000","products":["microsoft:windows_2000"],"type":"auth_bypass","year":"2004"},"n_packages":0,"n_references":2,"next":{"headline":"Memory corruption in n/a","id":"CVE-2004-0541"},"packages":[],"prev":{"headline":"Code injection in n/a","id":"CVE-2004-0539"},"products":["n/a"],"published":"2004-06-08","related":[{"cvss_score":9.8,"headline":"Microsoft Windows Buffer Overflow","id":"CVE-2008-4250","kev_date_added":"2026-05-20","published":"2008-10-23"},{"cvss_score":7.8,"headline":"Microsoft Windows Kernel Exception Handler","id":"CVE-2010-0232","kev_date_added":"2022-03-03","published":"2010-01-21"},{"cvss_score":7.8,"headline":"Microsoft Windows Improper Input Validation","id":"CVE-2009-1123","kev_date_added":"2022-03-03","published":"2009-06-10"},{"cvss_score":7.8,"headline":"Microsoft Windows Privilege Escalation","id":"CVE-2002-0367","kev_date_added":"2022-03-03","published":"2003-04-02"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2010-0269","kev_date_added":null,"published":"2010-04-14"},{"cvss_score":10,"headline":"Weak cryptography in n/a","id":"CVE-2010-0231","kev_date_added":null,"published":"2010-02-10"},{"cvss_score":10,"headline":"Auth bypass in n/a","id":"CVE-2009-3677","kev_date_added":null,"published":"2009-12-09"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-08","vendors":["n/a"]},"summary":"Attackers with expired passwords can bypass authentication and log in to Windows 2000 domains if the FQDN is exactly 8 characters long.","url":"https://insights.sbomify.com/CVE-2004-0540/"}