{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3804 exists.","fix":"No fix has been published for CVE-2026-3804 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-3804 is a high-severity memory corruption vulnerability in Tenda i3, published on 9 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-3804 and fix it if it is affected.\n\nWhat it is: CVE-2026-3804 is a high-severity memory corruption vulnerability in Tenda i3, published on 9 Mar 2026. 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-2026-3804 exists.\n\nAffected product: Tenda i3. 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-2026-3804/ (Markdown: https://insights.sbomify.com/CVE-2026-3804/index.md)","id":"CVE-2026-3804","markdown":"https://insights.sbomify.com/CVE-2026-3804/index.md","name":"CVE-2026-3804","record":{"aliases":["GHSA-gcmm-29vw-qxj6"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Tenda i3 router","requires_auth":"low_privilege","summary":"Remote attackers can trigger a stack-based buffer overflow in the Tenda i3 router's Wi-Fi MAC filter interface, potentially leading to code execution or service disruption.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"i3_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/E:P","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 security flaw has been discovered in Tenda i3 1.0.0.6(2204). This vulnerability affects the function formWifiMacFilterSet of the file /goform/WifiMacFilterSet. The manipulation of the argument index results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.","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 i3 WifiMacFilterSet formWifiMacFilterSet stack-based overflow","id":"CVE-2026-3804","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"use after free in SMB connection reuse","id":"CVE-2026-3805"},"packages":[],"prev":{"headline":"Tenda i3 WifiMacFilterGet formWifiMacFilterGet stack-based overflow","id":"CVE-2026-3803"},"products":["i3"],"published":"2026-03-09","related":[{"cvss_score":8.7,"headline":"Tenda i3 wifiSSIDget formwrlSSIDget stack-based overflow","id":"CVE-2026-3970","kev_date_added":null,"published":"2026-03-12"},{"cvss_score":8.7,"headline":"Tenda i3 wifiSSIDset formwrlSSIDset stack-based overflow","id":"CVE-2026-3971","kev_date_added":null,"published":"2026-03-12"},{"cvss_score":8.7,"headline":"Tenda i3 setcfm formSetCfm stack-based overflow","id":"CVE-2026-3799","kev_date_added":null,"published":"2026-03-09"},{"cvss_score":8.7,"headline":"Tenda i3 setAutoPing formSetAutoPing stack-based overflow","id":"CVE-2026-3801","kev_date_added":null,"published":"2026-03-09"},{"cvss_score":8.7,"headline":"Tenda i3 exeCommand formexeCommand stack-based overflow","id":"CVE-2026-3802","kev_date_added":null,"published":"2026-03-09"},{"cvss_score":8.7,"headline":"Tenda i3 WifiMacFilterGet formWifiMacFilterGet stack-based overflow","id":"CVE-2026-3803","kev_date_added":null,"published":"2026-03-09"}],"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":"2026-03-10","vendors":["Tenda"]},"summary":"Remote attackers can trigger a stack-based buffer overflow in the Tenda i3 router's Wi-Fi MAC filter interface, potentially leading to code execution or service disruption.","url":"https://insights.sbomify.com/CVE-2026-3804/"}