{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2186 exists.","fix":"No fix has been published for CVE-2026-2186 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-2186 is a high-severity memory corruption vulnerability in Tenda RX3, 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-2026-2186 and fix it if it is affected.\n\nWhat it is: CVE-2026-2186 is a high-severity memory corruption vulnerability in Tenda RX3, 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-2026-2186 exists.\n\nAffected product: Tenda RX3. 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-2026-2186/ (Markdown: https://insights.sbomify.com/CVE-2026-2186/index.md)","id":"CVE-2026-2186","markdown":"https://insights.sbomify.com/CVE-2026-2186/index.md","name":"CVE-2026-2186","record":{"aliases":["GHSA-56wx-xhr6-q6v2"],"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 RX3 router","requires_auth":"low_privilege","summary":"A remote attacker can trigger a stack-based buffer overflow in the Tenda RX3 router's IP-MAC binding function, 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":"rx3_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-121","name":"Stack-based Buffer Overflow"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"A vulnerability has been found in Tenda RX3 16.03.13.11. Impacted is the function fromSetIpMacBind of the file /goform/SetIpMacBind. Such manipulation of the argument list leads to stack-based buffer overflow. The attack may be performed from remote. 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 RX3 SetIpMacBind fromSetIpMacBind stack-based overflow","id":"CVE-2026-2186","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Tenda RX3 formSetQosBand set_qosMib_list stack-based overflow","id":"CVE-2026-2187"},"packages":[],"prev":{"headline":"Tenda RX3 MAC Filtering Configuration Endpoint setBlackRule set_device_name stack-based overflow","id":"CVE-2026-2185"},"products":["RX3"],"published":"2026-02-08","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-44899","kev_date_added":null,"published":"2025-05-06"},{"cvss_score":8.7,"headline":"Tenda RX3 fast_setting_wifi_set stack-based overflow","id":"CVE-2026-2180","kev_date_added":null,"published":"2026-02-08"},{"cvss_score":8.7,"headline":"Tenda RX3 openSchedWifi stack-based overflow","id":"CVE-2026-2181","kev_date_added":null,"published":"2026-02-08"},{"cvss_score":8.7,"headline":"Tenda RX3 MAC Filtering Configuration Endpoint setBlackRule set_device_name stack-based overflow","id":"CVE-2026-2185","kev_date_added":null,"published":"2026-02-08"},{"cvss_score":8.7,"headline":"Tenda RX3 formSetQosBand set_qosMib_list stack-based overflow","id":"CVE-2026-2187","kev_date_added":null,"published":"2026-02-08"},{"cvss_score":8.7,"headline":"Tenda RX3 SetStaticRouteCfg save_staticroute_data stack-based overflow","id":"CVE-2025-5527","kev_date_added":null,"published":"2025-06-03"}],"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":"2026-02-23","vendors":["Tenda"]},"summary":"A remote attacker can trigger a stack-based buffer overflow in the Tenda RX3 router's IP-MAC binding function, potentially leading to code execution or service disruption.","url":"https://insights.sbomify.com/CVE-2026-2186/"}