{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-7221 exists.","fix":"No fix has been published for CVE-2023-7221 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-7221 is a critical memory corruption vulnerability in Totolink T6, published on 9 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-7221 and fix it if it is affected.\n\nWhat it is: CVE-2023-7221 is a critical memory corruption vulnerability in Totolink T6, published on 9 Jan 2024. 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-2023-7221 exists.\n\nAffected product: Totolink T6. 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-2023-7221/ (Markdown: https://insights.sbomify.com/CVE-2023-7221/index.md)","id":"CVE-2023-7221","markdown":"https://insights.sbomify.com/CVE-2023-7221/index.md","name":"CVE-2023-7221","record":{"aliases":["GHSA-c653-w7m8-34r2"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Totolink T6 router","requires_auth":"none","summary":"Remote attackers can trigger a buffer overflow in the login handler of Totolink T6 routers, potentially leading to code execution or service disruption.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"t6_firmware","vendor":"totolink"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"A vulnerability was found in Totolink T6 4.1.9cu.5241_B20210923. It has been classified as critical. This affects the function main of the file /cgi-bin/cstecgi.cgi?action=login of the component HTTP POST Request Handler. The manipulation of the argument v41 leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-249855. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.","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":"Totolink T6 HTTP POST Request main buffer overflow","id":"CVE-2023-7221","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"Totolink X2000R HTTP POST Request boa formTmultiAP buffer overflow","id":"CVE-2023-7222"},"packages":[],"prev":{"headline":"Totolink NR1800X cstecgi.cgi loginAuth stack-based overflow","id":"CVE-2023-7220"},"products":["T6"],"published":"2024-01-09","related":[{"cvss_score":9.8,"headline":"Hardcoded credentials in n/a","id":"CVE-2022-38823","kev_date_added":null,"published":"2022-09-16"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2022-38826","kev_date_added":null,"published":"2022-09-16"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2022-38827","kev_date_added":null,"published":"2022-09-16"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2022-38828","kev_date_added":null,"published":"2022-09-16"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2022-25084","kev_date_added":null,"published":"2022-02-22"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2022-25133","kev_date_added":null,"published":"2022-02-18"}],"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-05-14","vendors":["Totolink"]},"summary":"Remote attackers can trigger a buffer overflow in the login handler of Totolink T6 routers, potentially leading to code execution or service disruption.","url":"https://insights.sbomify.com/CVE-2023-7221/"}