{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4227 exists.","fix":"No fix has been published for CVE-2026-4227 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-4227 is a high-severity memory corruption vulnerability in LB-LINK BL-WR9000, published on 16 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-4227 and fix it if it is affected.\n\nWhat it is: CVE-2026-4227 is a high-severity memory corruption vulnerability in LB-LINK BL-WR9000, published on 16 Mar 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-2026-4227 exists.\n\nAffected product: LB-LINK BL-WR9000. 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-2026-4227/ (Markdown: https://insights.sbomify.com/CVE-2026-4227/index.md)","id":"CVE-2026-4227","markdown":"https://insights.sbomify.com/CVE-2026-4227/index.md","name":"CVE-2026-4227","record":{"aliases":["GHSA-hj3v-rf5w-w57g"],"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":"LB-LINK router","requires_auth":"low_privilege","summary":"Remote attackers can exploit a buffer overflow in the LB-LINK BL-WR9000 router to potentially execute arbitrary code or cause a denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[{"product":"bl-wr9000_firmware","vendor":"lb-link"}],"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-125","name":"Out-of-bounds Read"},{"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 vulnerability has been detected in LB-LINK BL-WR9000 2.4.9. The impacted element is the function sub_44D844 of the file /goform/get_hidessid_cfg. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.","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":"LB-LINK BL-WR9000 get_hidessid_cfg sub_44D844 buffer overflow","id":"CVE-2026-4227","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"LB-LINK BL-WR9000 set_wifi sub_458754 command injection","id":"CVE-2026-4228"},"packages":[],"prev":{"headline":"LB-LINK BL-WR9000 get_virtual_cfg sub_44E8D0 stack-based overflow","id":"CVE-2026-4226"},"products":["BL-WR9000"],"published":"2026-03-16","related":[{"cvss_score":8.7,"headline":"LB-LINK BL-WR9000 get_virtual_cfg sub_44E8D0 stack-based overflow","id":"CVE-2026-4226","kev_date_added":null,"published":"2026-03-16"},{"cvss_score":5.3,"headline":"LB-LINK BL-WR9000 set_wifi sub_458754 command injection","id":"CVE-2026-4228","kev_date_added":null,"published":"2026-03-16"}],"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":"2026-03-16","vendors":["LB-LINK"]},"summary":"Remote attackers can exploit a buffer overflow in the LB-LINK BL-WR9000 router to potentially execute arbitrary code or cause a denial of service.","url":"https://insights.sbomify.com/CVE-2026-4227/"}