{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-11091 exists.","fix":"No fix has been published for CVE-2025-11091 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-11091 is a high-severity memory corruption vulnerability in Tenda AC21, published on 28 Sep 2025. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-11091 and fix it if it is affected.\n\nWhat it is: CVE-2025-11091 is a high-severity memory corruption vulnerability in Tenda AC21, published on 28 Sep 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-2025-11091 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-2025-11091/ (Markdown: https://insights.sbomify.com/CVE-2025-11091/index.md)","id":"CVE-2025-11091","markdown":"https://insights.sbomify.com/CVE-2025-11091/index.md","name":"CVE-2025-11091","record":{"aliases":["GHSA-q44p-w6pc-7fm3"],"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 remote attacker can trigger a buffer overflow in the Tenda AC21 router's static route configuration, 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":"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 security flaw has been discovered in Tenda AC21 up to 16.03.08.16. Affected by this vulnerability is the function sscanf of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be exploited.","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 SetStaticRouteCfg sscanf buffer overflow","id":"CVE-2025-11091","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":"D-Link DIR-823X set_switch_settings sub_412E7C command injection","id":"CVE-2025-11092"},"packages":[],"prev":{"headline":"itsourcecode Open Source Job Portal index.php sql injection","id":"CVE-2025-11090"},"products":["AC21"],"published":"2025-09-28","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"},{"cvss_score":8.7,"headline":"Tenda AC21 SetPptpServerCfg formSetPPTPServer buffer overflow","id":"CVE-2025-12611","kev_date_added":null,"published":"2025-11-03"}],"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":"2025-09-29","vendors":["Tenda"]},"summary":"A remote attacker can trigger a buffer overflow in the Tenda AC21 router's static route configuration, potentially leading to code execution or service disruption.","url":"https://insights.sbomify.com/CVE-2025-11091/"}