{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-12611 exists.","fix":"No fix has been published for CVE-2025-12611 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-12611 is a high-severity memory corruption vulnerability in Tenda AC21, published on 3 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-12611 and fix it if it is affected.\n\nWhat it is: CVE-2025-12611 is a high-severity memory corruption vulnerability in Tenda AC21, published on 3 Nov 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-2025-12611 exists.\n\nAffected product: Tenda AC21. 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-2025-12611/ (Markdown: https://insights.sbomify.com/CVE-2025-12611/index.md)","id":"CVE-2025-12611","markdown":"https://insights.sbomify.com/CVE-2025-12611/index.md","name":"CVE-2025-12611","record":{"aliases":["GHSA-rfpm-frcg-62rg"],"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 AC21 router","requires_auth":"low_privilege","summary":"A buffer overflow in the Tenda AC21 router allows remote attackers to execute arbitrary code or cause a denial of service via the SetPptpServerCfg endpoint.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"ac21_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 AC21 16.03.08.16. This vulnerability affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg. The manipulation of the argument startIp leads to buffer overflow. Remote exploitation of the attack is possible. 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 AC21 SetPptpServerCfg formSetPPTPServer buffer overflow","id":"CVE-2025-12611","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2025"},"n_packages":0,"n_references":5,"next":{"headline":"Campcodes School Fees Payment Management System ajax.php sql injection","id":"CVE-2025-12612"},"packages":[],"prev":{"headline":"CodeAstro Gym Management System view-progress-report.php sql injection","id":"CVE-2025-12610"},"products":["AC21"],"published":"2025-11-03","related":[{"cvss_score":9.3,"headline":"Tenda AC21/AC23 GetParentControlInfo stack-based overflow","id":"CVE-2025-9605","kev_date_added":null,"published":"2025-08-29"},{"cvss_score":8.8,"headline":"Command injection in n/a","id":"CVE-2023-24333","kev_date_added":null,"published":"2024-02-21"},{"cvss_score":8.7,"headline":"Tenda AC21 SetNetControlList formSetQosBand buffer overflow","id":"CVE-2026-4565","kev_date_added":null,"published":"2026-03-23"},{"cvss_score":8.7,"headline":"Tenda AC21 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based overflow","id":"CVE-2026-1637","kev_date_added":null,"published":"2026-01-29"},{"cvss_score":8.7,"headline":"Tenda AC21 SetIpMacBind stack-based overflow","id":"CVE-2025-13445","kev_date_added":null,"published":"2025-11-20"},{"cvss_score":8.7,"headline":"Tenda AC21 SetSysTimeCfg stack-based overflow","id":"CVE-2025-13446","kev_date_added":null,"published":"2025-11-20"}],"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":"2026-02-24","vendors":["Tenda"]},"summary":"A buffer overflow in the Tenda AC21 router allows remote attackers to execute arbitrary code or cause a denial of service via the SetPptpServerCfg endpoint.","url":"https://insights.sbomify.com/CVE-2025-12611/"}