{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2909 exists.","fix":"No fix has been published for CVE-2026-2909 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-2909 is a high-severity memory corruption vulnerability in Tenda HG9, published on 22 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-2909 and fix it if it is affected.\n\nWhat it is: CVE-2026-2909 is a high-severity memory corruption vulnerability in Tenda HG9, published on 22 Feb 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-2026-2909 exists.\n\nAffected product: Tenda HG9. 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-2026-2909/ (Markdown: https://insights.sbomify.com/CVE-2026-2909/index.md)","id":"CVE-2026-2909","markdown":"https://insights.sbomify.com/CVE-2026-2909/index.md","name":"CVE-2026-2909","record":{"aliases":["GHSA-8pgv-26pm-rgm8"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Tenda HG9 router","requires_auth":"low_privilege","summary":"Remote attackers can trigger a stack-based buffer overflow in the diagnostic ping endpoint to potentially execute arbitrary code on Tenda HG9 routers.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"hg9_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 detected in Tenda HG9 300001138. This affects an unknown part of the file /boaform/formPing of the component Diagnostic Ping Endpoint. Performing a manipulation of the argument pingAddr results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now 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 HG9 Diagnostic Ping Endpoint formPing stack-based overflow","id":"CVE-2026-2909","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 HG9 formPing6 stack-based overflow","id":"CVE-2026-2910"},"packages":[],"prev":{"headline":"Tenda HG9 Loopback Detection Configuration Endpoint formLoopBack stack-based overflow","id":"CVE-2026-2908"},"products":["HG9"],"published":"2026-02-22","related":[{"cvss_score":8.8,"headline":"Command injection in n/a","id":"CVE-2022-30023","kev_date_added":null,"published":"2022-06-16"},{"cvss_score":8.7,"headline":"Tenda HG9 Wireless Configuration Endpoint formWlanSetup stack-based overflow","id":"CVE-2026-2905","kev_date_added":null,"published":"2026-02-22"},{"cvss_score":8.7,"headline":"Tenda HG9 Samba Configuration Endpoint formSamba stack-based overflow","id":"CVE-2026-2906","kev_date_added":null,"published":"2026-02-22"},{"cvss_score":8.7,"headline":"Tenda HG9 GPON Configuration Endpoint formgponConf stack-based overflow","id":"CVE-2026-2907","kev_date_added":null,"published":"2026-02-22"},{"cvss_score":8.7,"headline":"Tenda HG9 Loopback Detection Configuration Endpoint formLoopBack stack-based overflow","id":"CVE-2026-2908","kev_date_added":null,"published":"2026-02-22"},{"cvss_score":8.7,"headline":"Tenda HG9 formPing6 stack-based overflow","id":"CVE-2026-2910","kev_date_added":null,"published":"2026-02-22"}],"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":"2026-02-23","vendors":["Tenda"]},"summary":"Remote attackers can trigger a stack-based buffer overflow in the diagnostic ping endpoint to potentially execute arbitrary code on Tenda HG9 routers.","url":"https://insights.sbomify.com/CVE-2026-2909/"}