{"answers":{"affected":"It affects 2 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-3820 exists.","fix":"No fix has been published for CVE-2025-3820 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-3820 is a high-severity memory corruption vulnerability in Tenda W12, published on 19 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-3820 and fix it if it is affected.\n\nWhat it is: CVE-2025-3820 is a high-severity memory corruption vulnerability in Tenda W12, published on 19 Apr 2025. 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-2025-3820 exists.\n\nAffected product: Tenda W12. 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-2025-3820/ (Markdown: https://insights.sbomify.com/CVE-2025-3820/index.md)","id":"CVE-2025-3820","markdown":"https://insights.sbomify.com/CVE-2025-3820/index.md","name":"CVE-2025-3820","record":{"aliases":["GHSA-f9cw-7mcv-gq63"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Tenda wireless router","requires_auth":"low_privilege","summary":"Remote attackers can trigger a stack-based buffer overflow in Tenda W12/i24 routers via the httpd service, 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":"i24_firmware","vendor":"tenda"},{"product":"w12_firmware","vendor":"tenda"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"A vulnerability was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644) and classified as critical. Affected by this issue is the function cgiSysUplinkCheckSet of the file /bin/httpd. The manipulation of the argument hostIp1/hostIp2 leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.","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 W12/i24 httpd cgiSysUplinkCheckSet stack-based overflow","id":"CVE-2025-3820","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2025"},"n_packages":0,"n_references":5,"next":{"headline":"SourceCodester Web-based Pharmacy Product Management System add-admin.php cross site scripting","id":"CVE-2025-3821"},"packages":[],"prev":{"headline":"PHPGurukul Men Salon Management System search-appointment.php sql injection","id":"CVE-2025-3819"},"products":["W12","i24"],"published":"2025-04-19","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2024-57483","kev_date_added":null,"published":"2025-01-14"},{"cvss_score":8.7,"headline":"Tenda W12/i24 httpd modules cgidhcpsCfgSet stack-based overflow","id":"CVE-2025-4007","kev_date_added":null,"published":"2025-04-28"},{"cvss_score":8.7,"headline":"Tenda W12/i24 httpd cgiPingSet stack-based overflow","id":"CVE-2025-3802","kev_date_added":null,"published":"2025-04-19"},{"cvss_score":8.7,"headline":"Tenda W12/i24 httpd cgiSysScheduleRebootSet stack-based overflow","id":"CVE-2025-3803","kev_date_added":null,"published":"2025-04-19"},{"cvss_score":8.4,"headline":"Hardcoded credentials in n/a","id":"CVE-2025-70798","kev_date_added":null,"published":"2026-03-10"}],"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":"2025-04-21","vendors":["Tenda"]},"summary":"Remote attackers can trigger a stack-based buffer overflow in Tenda W12/i24 routers via the httpd service, potentially leading to arbitrary code execution.","url":"https://insights.sbomify.com/CVE-2025-3820/"}