{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-2566 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-2566 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-2566 is a high-severity memory corruption vulnerability in Wavlink WL-NU516U1, published on 16 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-2566 and fix it if it is affected.\n\nWhat it is: CVE-2026-2566 is a high-severity memory corruption vulnerability in Wavlink WL-NU516U1, published on 16 Feb 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-2566 in the wild and no public exploit code.\n\nAffected product: Wavlink WL-NU516U1. 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-2026-2566/ (Markdown: https://insights.sbomify.com/CVE-2026-2566/index.md)","id":"CVE-2026-2566","markdown":"https://insights.sbomify.com/CVE-2026-2566/index.md","name":"CVE-2026-2566","record":{"aliases":["GHSA-jxpj-x8cw-h5ph"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Wavlink router","requires_auth":"high_privilege","summary":"Remote attackers can trigger a stack-based buffer overflow in the Wavlink WL-NU516U1 router's adm.cgi script to execute arbitrary code.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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 security vulnerability has been detected in Wavlink WL-NU516U1 up to 130/260. This affects the function sub_406194 of the file /cgi-bin/adm.cgi. Such manipulation of the argument firmware_url leads to stack-based buffer overflow. The attack can be launched 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":"none_known"},"has_fix":null,"headline":"Wavlink WL-NU516U1 adm.cgi sub_406194 stack-based overflow","id":"CVE-2026-2566","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":"Wavlink WL-NU516U1 nas.cgi sub_401218 stack-based overflow","id":"CVE-2026-2567"},"packages":[],"prev":{"headline":"Wavlink WL-NU516U1 adm.cgi sub_40785C stack-based overflow","id":"CVE-2026-2565"},"products":["WL-NU516U1"],"published":"2026-02-16","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-02-23","vendors":["Wavlink"]},"summary":"Remote attackers can trigger a stack-based buffer overflow in the Wavlink WL-NU516U1 router's adm.cgi script to execute arbitrary code.","url":"https://insights.sbomify.com/CVE-2026-2566/"}