{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-40839 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-40839 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-40839 is a critical command injection vulnerability in Tenda Ac6 Firmware, published on 30 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-40839 and fix it if it is affected.\n\nWhat it is: CVE-2023-40839 is a critical command injection vulnerability in Tenda Ac6 Firmware, published on 30 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-40839 in the wild and no public exploit code.\n\nAffected product: Tenda Ac6 Firmware. 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-2023-40839/ (Markdown: https://insights.sbomify.com/CVE-2023-40839/index.md)","id":"CVE-2023-40839","markdown":"https://insights.sbomify.com/CVE-2023-40839/index.md","name":"CVE-2023-40839","record":{"aliases":["GHSA-6qff-m8jw-8qqh"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Tenda AC6 router","requires_auth":"none","summary":"Attackers can execute arbitrary commands on Tenda AC6 routers via unfiltered parameters in the IPTV configuration function.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ac6_firmware","vendor":"tenda"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"Tenda AC6 US_AC6V1.0BR_V15.03.05.16_multi_TD01.bin function 'sub_ADF3C' contains a command execution vulnerability. In the \"formSetIptv\" function, obtaining the \"list\" and \"vlanId\" fields, unfiltered passing these two fields as parameters to the \"sub_ADF3C\" function to execute commands.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Command injection in n/a","id":"CVE-2023-40839","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"tenda:ac6_firmware","products":["tenda:ac6_firmware"],"type":"command_injection","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Memory corruption in n/a","id":"CVE-2023-40840"},"packages":[],"prev":{"headline":"Command injection in n/a","id":"CVE-2023-40838"},"products":["n/a"],"published":"2023-08-30","related":[{"cvss_score":9.8,"headline":"Auth bypass in AC6 V5.0","id":"CVE-2025-27129","kev_date_added":null,"published":"2025-08-20"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-29029","kev_date_added":null,"published":"2025-03-14"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-29030","kev_date_added":null,"published":"2025-03-14"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-29031","kev_date_added":null,"published":"2025-03-14"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-25343","kev_date_added":null,"published":"2025-02-12"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2023-40830","kev_date_added":null,"published":"2023-10-03"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2023-40837","kev_date_added":null,"published":"2023-08-30"}],"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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-10-01","vendors":["n/a"]},"summary":"Attackers can execute arbitrary commands on Tenda AC6 routers via unfiltered parameters in the IPTV configuration function.","url":"https://insights.sbomify.com/CVE-2023-40839/"}