{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-45739 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-45739 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-45739 is a high-severity denial of service vulnerability in n/a, published on 4 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-45739 and fix it if it is affected.\n\nWhat it is: CVE-2021-45739 is a high-severity denial of service vulnerability in n/a, published on 4 Feb 2022. 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-2021-45739 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2021-45739/ (Markdown: https://insights.sbomify.com/CVE-2021-45739/index.md)","id":"CVE-2021-45739","markdown":"https://insights.sbomify.com/CVE-2021-45739/index.md","name":"CVE-2021-45739","record":{"aliases":["GHSA-2vw5-8fhm-cvqc"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"TOTOLINK router","requires_auth":"none","summary":"Attackers can cause a Denial of Service on TOTOLINK A720R routers by exploiting a stack overflow in the login function.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"a720r_firmware","vendor":"totolink"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a stack overflow in the Form_Login function. This vulnerability allows attackers to cause a Denial of Service (DoS) via the flag parameter.","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":"Denial of service in n/a","id":"CVE-2021-45739","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Denial of service in n/a","id":"CVE-2021-45740"},"packages":[],"prev":{"headline":"Command injection in n/a","id":"CVE-2021-45738"},"products":["n/a"],"published":"2022-02-04","related":[{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2023-23064","kev_date_added":null,"published":"2023-02-17"},{"cvss_score":9.8,"headline":"Denial of service in n/a","id":"CVE-2021-45740","kev_date_added":null,"published":"2022-02-04"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2021-45742","kev_date_added":null,"published":"2022-02-04"},{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2021-35324","kev_date_added":null,"published":"2021-08-05"},{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2021-35327","kev_date_added":null,"published":"2021-08-05"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2021-27708","kev_date_added":null,"published":"2021-04-14"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2021-27710","kev_date_added":null,"published":"2021-04-14"}],"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":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can cause a Denial of Service on TOTOLINK A720R routers by exploiting a stack overflow in the login function.","url":"https://insights.sbomify.com/CVE-2021-45739/"}