{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3972 exists.","fix":"No fix has been published for CVE-2026-3972 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-3972 is a high-severity memory corruption vulnerability in Tenda W3, published on 12 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-3972 and fix it if it is affected.\n\nWhat it is: CVE-2026-3972 is a high-severity memory corruption vulnerability in Tenda W3, published on 12 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3972 exists.\n\nAffected product: Tenda W3. 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-2026-3972/ (Markdown: https://insights.sbomify.com/CVE-2026-3972/index.md)","id":"CVE-2026-3972","markdown":"https://insights.sbomify.com/CVE-2026-3972/index.md","name":"CVE-2026-3972","record":{"aliases":["GHSA-j4r5-rc95-5xpf"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Tenda W3 router","requires_auth":"none","summary":"A stack-based buffer overflow in the Tenda W3 router's HTTP handler allows local network attackers to execute arbitrary code.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"w3_firmware","vendor":"tenda"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/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-787","name":"Out-of-bounds Write"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"A vulnerability was found in Tenda W3 1.0.0.3(2204). Affected by this issue is the function formSetCfm of the file /goform/setcfm of the component HTTP Handler. The manipulation of the argument funcpara1 results in stack-based buffer overflow. The attack can only be performed from the local network. The exploit has been made public and could 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 W3 HTTP setcfm formSetCfm stack-based overflow","id":"CVE-2026-3972","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":"Tenda W3 POST Parameter setAutoPing formSetAutoPing stack-based overflow","id":"CVE-2026-3973"},"packages":[],"prev":{"headline":"Tenda i3 wifiSSIDset formwrlSSIDset stack-based overflow","id":"CVE-2026-3971"},"products":["W3"],"published":"2026-03-12","related":[{"cvss_score":8.7,"headline":"Tenda W3 POST Parameter setAutoPing formSetAutoPing stack-based overflow","id":"CVE-2026-3973","kev_date_added":null,"published":"2026-03-12"},{"cvss_score":8.7,"headline":"Tenda W3 HTTP exeCommand formexeCommand stack-based overflow","id":"CVE-2026-3974","kev_date_added":null,"published":"2026-03-12"},{"cvss_score":8.7,"headline":"Tenda W3 POST Parameter WifiMacFilterGet formWifiMacFilterGet stack-based overflow","id":"CVE-2026-3975","kev_date_added":null,"published":"2026-03-12"},{"cvss_score":8.7,"headline":"Tenda W3 POST Parameter WifiMacFilterSet formWifiMacFilterSet stack-based overflow","id":"CVE-2026-3976","kev_date_added":null,"published":"2026-03-12"},{"cvss_score":8.7,"headline":"Tenda W3 POST Parameter wifiSSIDget stack-based overflow","id":"CVE-2026-4007","kev_date_added":null,"published":"2026-03-12"},{"cvss_score":8.7,"headline":"Tenda W3 POST Parameter wifiSSIDset stack-based overflow","id":"CVE-2026-4008","kev_date_added":null,"published":"2026-03-12"}],"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":"2026-03-12","vendors":["Tenda"]},"summary":"A stack-based buffer overflow in the Tenda W3 router's HTTP handler allows local network attackers to execute arbitrary code.","url":"https://insights.sbomify.com/CVE-2026-3972/"}