{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-89009 exists.","fix":"No fix has been published for CVE-2026-89009 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-89009 is a high-severity path traversal vulnerability in WAVLINK Technology WN535M1, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-89009 and fix it if it is affected.\n\nWhat it is: CVE-2026-89009 is a high-severity path traversal vulnerability in WAVLINK Technology WN535M1, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-89009 exists.\n\nAffected product: WAVLINK Technology WN535M1. 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-2026-89009/ (Markdown: https://insights.sbomify.com/CVE-2026-89009/index.md)","id":"CVE-2026-89009","markdown":"https://insights.sbomify.com/CVE-2026-89009/index.md","name":"CVE-2026-89009","record":{"aliases":["GHSA-pg3c-cqw3-4pgg"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"WAVLINK router","requires_auth":"none","summary":"Remote attackers can overwrite arbitrary files on WAVLINK routers via the sync_server daemon to achieve persistent system compromise.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-36","name":"Absolute Path Traversal"}],"description":"WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1_V250922 contain an unauthenticated arbitrary file write vulnerability that allows remote attackers to overwrite any file on the device by sending a crafted payload to the sync_server daemon on TCP port 13136. The daemon, which runs as root and requires no authentication, accepts a 100-byte filename field in its protocol header without path canonicalization, allowing attackers to supply an absolute path and write arbitrary content to overwrite startup scripts or credential stores to achieve persistent system compromise.","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":"WAVLINK WN535M1/WN535M3 Unauthenticated Arbitrary File Write via sync_server","id":"CVE-2026-89009","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"WAVLINK WN535M1/WN535M3 Unauthenticated OS Command Injection via sync_server","id":"CVE-2026-89010"},"packages":[],"prev":{"headline":"Bookit \u003c 2.6.0.5 - Bookit Staff+ Appointment PII Disclosure","id":"CVE-2026-89008"},"products":["WN535M1","WN535M3"],"published":"2026-09-11","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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["WAVLINK Technology"]},"summary":"Remote attackers can overwrite arbitrary files on WAVLINK routers via the sync_server daemon to achieve persistent system compromise.","url":"https://insights.sbomify.com/CVE-2026-89009/"}