{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3679 exists.","fix":"No fix has been published for CVE-2026-3679 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-3679 is a high-severity memory corruption vulnerability in Tenda FH451, published on 7 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-2026-3679 and fix it if it is affected.\n\nWhat it is: CVE-2026-3679 is a high-severity memory corruption vulnerability in Tenda FH451, published on 7 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-2026-3679 exists.\n\nAffected product: Tenda FH451. 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-2026-3679/ (Markdown: https://insights.sbomify.com/CVE-2026-3679/index.md)","id":"CVE-2026-3679","markdown":"https://insights.sbomify.com/CVE-2026-3679/index.md","name":"CVE-2026-3679","record":{"aliases":["GHSA-f282-6248-c3xx"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Tenda FH451 router","requires_auth":"low_privilege","summary":"A remote attacker can execute arbitrary code on Tenda FH451 routers via a stack-based buffer overflow in the QuickIndex form.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"f451_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 vulnerability was identified in Tenda FH451 1.0.0.9. Affected by this vulnerability is the function formQuickIndex of the file /goform/QuickIndex. Such manipulation of the argument mit_linktype/PPPOEPassword leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is publicly available and might 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 FH451 QuickIndex formQuickIndex stack-based overflow","id":"CVE-2026-3679","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":"RyuzakiShinji biome-mcp-server biome-mcp-server.ts command injection","id":"CVE-2026-3680"},"packages":[],"prev":{"headline":"Tenda FH451 AdvSetWan sub_3C434 stack-based overflow","id":"CVE-2026-3678"},"products":["FH451"],"published":"2026-03-07","related":[{"cvss_score":8.7,"headline":"Tenda F451 httpd DhcpListClient fromDhcpListClient stack-based overflow","id":"CVE-2026-6120","kev_date_added":null,"published":"2026-04-12"},{"cvss_score":8.7,"headline":"Tenda F451 httpd WrlclientSet stack-based overflow","id":"CVE-2026-6121","kev_date_added":null,"published":"2026-04-12"},{"cvss_score":8.7,"headline":"Tenda F451 httpd L7Prot frmL7ProtForm stack-based overflow","id":"CVE-2026-6122","kev_date_added":null,"published":"2026-04-12"},{"cvss_score":8.7,"headline":"Tenda F451 httpd addressNat fromAddressNat stack-based overflow","id":"CVE-2026-6123","kev_date_added":null,"published":"2026-04-12"},{"cvss_score":8.7,"headline":"Tenda F451 httpd SafeMacFilter fromSafeMacFilter stack-based overflow","id":"CVE-2026-6124","kev_date_added":null,"published":"2026-04-12"},{"cvss_score":8.7,"headline":"Tenda F451 SafeUrlFilter fromSafeUrlFilter stack-based overflow","id":"CVE-2026-6133","kev_date_added":null,"published":"2026-04-12"},{"cvss_score":8.7,"headline":"Tenda F451 qossetting fromqossetting stack-based overflow","id":"CVE-2026-6134","kev_date_added":null,"published":"2026-04-12"}],"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":"2026-03-11","vendors":["Tenda"]},"summary":"A remote attacker can execute arbitrary code on Tenda FH451 routers via a stack-based buffer overflow in the QuickIndex form.","url":"https://insights.sbomify.com/CVE-2026-3679/"}