{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-37273 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-37273 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-37273 is a high-severity denial of service vulnerability in n/a, published on 28 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-37273 and fix it if it is affected.\n\nWhat it is: CVE-2021-37273 is a high-severity denial of service vulnerability in n/a, published on 28 Sep 2021. 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-2021-37273 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-2021-37273/ (Markdown: https://insights.sbomify.com/CVE-2021-37273/index.md)","id":"CVE-2021-37273","markdown":"https://insights.sbomify.com/CVE-2021-37273/index.md","name":"CVE-2021-37273","record":{"aliases":["GHSA-gq9p-fgf8-xxr3"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"EPON Gateway","requires_auth":"none","summary":"Attackers can repeatedly restart the China Telecom EPON Tianyi Gateway, causing a denial of service for connected users.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"epon_tianyi_gateway_zxhn_f450_firmware","vendor":"chinatelecom"}],"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":"A Denial of Service issue exists in China Telecom Corporation EPON Tianyi Gateway ZXHN F450(EPON ONU) 3.0. Tianyi Gateway is a hardware terminal of \"Optical Modem Smart Router.\" Attackers can use this vulnerability to restart the device multiple times.","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-2021-37273","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":"Privilege escalation in n/a","id":"CVE-2021-37274"},"packages":[],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2021-37271"},"products":["n/a"],"published":"2021-09-28","related":[],"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 repeatedly restart the China Telecom EPON Tianyi Gateway, causing a denial of service for connected users.","url":"https://insights.sbomify.com/CVE-2021-37273/"}