{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-7220 exists.","fix":"No fix has been published for CVE-2023-7220 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-7220 is a critical memory corruption vulnerability in Totolink NR1800X, 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-2023-7220 and fix it if it is affected.\n\nWhat it is: CVE-2023-7220 is a critical memory corruption vulnerability in Totolink NR1800X, 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-2023-7220 exists.\n\nAffected product: Totolink NR1800X. 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-2023-7220/ (Markdown: https://insights.sbomify.com/CVE-2023-7220/index.md)","id":"CVE-2023-7220","markdown":"https://insights.sbomify.com/CVE-2023-7220/index.md","name":"CVE-2023-7220","record":{"aliases":["GHSA-p9pw-8h32-73j5"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Totolink router","requires_auth":"none","summary":"Remote attackers can trigger a stack-based buffer overflow in the login authentication handler to execute arbitrary code on the router.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"nr1800x_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-121","name":"Stack-based Buffer Overflow"}],"description":"A vulnerability was found in Totolink NR1800X 9.1.0u.6279_B20210910 and classified as critical. Affected by this issue is the function loginAuth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument password leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-249854 is the identifier assigned to this vulnerability. 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 NR1800X cstecgi.cgi loginAuth stack-based overflow","id":"CVE-2023-7220","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 T6 HTTP POST Request main buffer overflow","id":"CVE-2023-7221"},"packages":[],"prev":{"headline":"Totolink N350RT cstecgi.cgi loginAuth stack-based overflow","id":"CVE-2023-7219"},"products":["NR1800X"],"published":"2024-01-09","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2023-36340","kev_date_added":null,"published":"2023-10-16"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2022-41518","kev_date_added":null,"published":"2022-10-06"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2022-41522","kev_date_added":null,"published":"2022-10-06"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2022-41525","kev_date_added":null,"published":"2022-10-06"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2025-45842","kev_date_added":null,"published":"2025-05-08"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2025-45843","kev_date_added":null,"published":"2025-05-08"}],"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-06-17","vendors":["Totolink"]},"summary":"Remote attackers can trigger a stack-based buffer overflow in the login authentication handler to execute arbitrary code on the router.","url":"https://insights.sbomify.com/CVE-2023-7220/"}