{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-4251 exists.","fix":"No fix has been published for CVE-2024-4251 yet. Limit exposure of the affected software until one is available.","what":"CVE-2024-4251 is a high-severity memory corruption vulnerability in Tenda i21, published on 27 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-4251 and fix it if it is affected.\n\nWhat it is: CVE-2024-4251 is a high-severity memory corruption vulnerability in Tenda i21, published on 27 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-4251 exists.\n\nAffected product: Tenda i21. 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-2024-4251/ (Markdown: https://insights.sbomify.com/CVE-2024-4251/index.md)","id":"CVE-2024-4251","markdown":"https://insights.sbomify.com/CVE-2024-4251/index.md","name":"CVE-2024-4251","record":{"aliases":["GHSA-3cf7-8394-7xmp"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Tenda i21 router","requires_auth":"low_privilege","summary":"Remote attackers can trigger a stack-based buffer overflow in the DHCP configuration handler of Tenda i21 routers, potentially leading to arbitrary code execution.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"i21_firmware","vendor":"tenda"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"A vulnerability was found in Tenda i21 1.0.0.14(4656). It has been rated as critical. Affected by this issue is the function fromDhcpSetSer of the file /goform/DhcpSetSe. The manipulation of the argument dhcpStartIp/dhcpEndIp/dhcpGw/dhcpMask/dhcpLeaseTime/dhcpDns1/dhcpDns2 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-262142 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":"Tenda i21 DhcpSetSe fromDhcpSetSer stack-based overflow","id":"CVE-2024-4251","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2024"},"n_packages":0,"n_references":4,"next":{"headline":"Tenda i22 formSetUrlFilterRule stack-based overflow","id":"CVE-2024-4252"},"packages":[],"prev":{"headline":"Tenda i21 wifiSSIDset formwrlSSIDset stack-based overflow","id":"CVE-2024-4250"},"products":["i21"],"published":"2024-04-27","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2022-44362","kev_date_added":null,"published":"2022-12-02"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2022-44363","kev_date_added":null,"published":"2022-12-02"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2022-44365","kev_date_added":null,"published":"2022-12-02"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2022-44366","kev_date_added":null,"published":"2022-12-02"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2022-44367","kev_date_added":null,"published":"2022-12-02"},{"cvss_score":8.8,"headline":"Tenda i21 setStaOffline formOfflineSet stack-based overflow","id":"CVE-2024-4492","kev_date_added":null,"published":"2024-05-05"},{"cvss_score":8.8,"headline":"Tenda i21 formSetAutoPing stack-based overflow","id":"CVE-2024-4493","kev_date_added":null,"published":"2024-05-05"}],"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":"total"},"state":"PUBLISHED","updated":"2024-08-01","vendors":["Tenda"]},"summary":"Remote attackers can trigger a stack-based buffer overflow in the DHCP configuration handler of Tenda i21 routers, potentially leading to arbitrary code execution.","url":"https://insights.sbomify.com/CVE-2024-4251/"}