{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2140 exists.","fix":"No fix has been published for CVE-2026-2140 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-2140 is a high-severity memory corruption vulnerability in Tenda TX9, published on 8 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-2026-2140 and fix it if it is affected.\n\nWhat it is: CVE-2026-2140 is a high-severity memory corruption vulnerability in Tenda TX9, published on 8 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-2026-2140 exists.\n\nAffected product: Tenda TX9. 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-2026-2140/ (Markdown: https://insights.sbomify.com/CVE-2026-2140/index.md)","id":"CVE-2026-2140","markdown":"https://insights.sbomify.com/CVE-2026-2140/index.md","name":"CVE-2026-2140","record":{"aliases":["GHSA-qmm8-vq32-mvfg"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Tenda TX9 router","requires_auth":"low_privilege","summary":"Remote attackers can trigger a buffer overflow in the Tenda TX9 router's MAC filter configuration, 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":"tx9_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-120","name":"Buffer Copy without Checking Size of Input"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"A vulnerability was identified in Tenda TX9 up to 22.03.02.10_multi. Affected by this issue is the function sub_4223E0 of the file /goform/setMacFilterCfg. Such manipulation of the argument deviceList leads to buffer overflow. The attack may be launched 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 TX9 setMacFilterCfg sub_4223E0 buffer overflow","id":"CVE-2026-2140","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"WuKongOpenSource WukongCRM URL PermissionServiceImpl.java improper authorization","id":"CVE-2026-2141"},"packages":[],"prev":{"headline":"Tenda TX9 fast_setting_wifi_set sub_432580 buffer overflow","id":"CVE-2026-2139"},"products":["TX9"],"published":"2026-02-08","related":[{"cvss_score":8.7,"headline":"Tenda TX9 SetStaticRouteCfg sub_42D03C buffer overflow","id":"CVE-2026-2138","kev_date_added":null,"published":"2026-02-08"},{"cvss_score":8.7,"headline":"Tenda TX9 fast_setting_wifi_set sub_432580 buffer overflow","id":"CVE-2026-2139","kev_date_added":null,"published":"2026-02-08"}],"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":"2026-02-23","vendors":["Tenda"]},"summary":"Remote attackers can trigger a buffer overflow in the Tenda TX9 router's MAC filter configuration, potentially leading to arbitrary code execution.","url":"https://insights.sbomify.com/CVE-2026-2140/"}