{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5839 exists.","fix":"No fix has been published for CVE-2025-5839 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-5839 is a high-severity memory corruption vulnerability in Tenda Ac9 Firmware, published on 7 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-5839 and fix it if it is affected.\n\nWhat it is: CVE-2025-5839 is a high-severity memory corruption vulnerability in Tenda Ac9 Firmware, published on 7 Jun 2025. 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-2025-5839 exists.\n\nAffected product: Tenda Ac9 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-2025-5839/ (Markdown: https://insights.sbomify.com/CVE-2025-5839/index.md)","id":"CVE-2025-5839","markdown":"https://insights.sbomify.com/CVE-2025-5839/index.md","name":"CVE-2025-5839","record":{"aliases":["GHSA-xpmp-hffj-q43q"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Tenda AC9 router","requires_auth":"low_privilege","summary":"Remote attackers can trigger a buffer overflow in the Tenda AC9 router via a crafted POST request, potentially leading to code execution or service disruption.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"ac9_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, which was classified as critical, has been found in Tenda AC9 15.03.02.13. Affected by this issue is the function fromadvsetlanip of the file /goform/AdvSetLanip of the component POST Request Handler. The manipulation of the argument lanMask leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the 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 AC9 POST Request AdvSetLanip fromadvsetlanip buffer overflow","id":"CVE-2025-5839","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"tenda:ac9_firmware","products":["tenda:ac9_firmware"],"type":"memory_corruption","year":"2025"},"n_packages":0,"n_references":5,"next":{"headline":"SourceCodester Client Database Management System user_update_customer_order.php unrestricted upload","id":"CVE-2025-5840"},"packages":[],"prev":{"headline":"PHPGurukul Employee Record Management System adminprofile.php sql injection","id":"CVE-2025-5838"},"products":["AC9"],"published":"2025-06-07","related":[{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2025-45042","kev_date_added":null,"published":"2025-05-05"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2025-44872","kev_date_added":null,"published":"2025-05-02"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2025-44877","kev_date_added":null,"published":"2025-05-02"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-45427","kev_date_added":null,"published":"2025-04-23"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-45428","kev_date_added":null,"published":"2025-04-23"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-45429","kev_date_added":null,"published":"2025-04-23"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-29384","kev_date_added":null,"published":"2025-03-14"}],"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":"2025-06-09","vendors":["Tenda"]},"summary":"Remote attackers can trigger a buffer overflow in the Tenda AC9 router via a crafted POST request, potentially leading to code execution or service disruption.","url":"https://insights.sbomify.com/CVE-2025-5839/"}