{"id":"CVE-2026-89010","title":"WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1_V250922 contain an unauthenticated OS command injection vulnerability that allows remote attackers to execute arbitrary commands as root by sending crafted filenames to …","summary":"WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1_V250922 contain an unauthenticated OS command injection vulnerability that allows remote attackers to execute arbitrary commands as root by sending crafted filenames to …","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-78"],"vendor":"WAVLINK Technology","product":"WN535M1","affected":["WN535M1 M35M1_V210223","WN535M3 M35M1_V210223"],"published":"2026-09-11","updated":"2026-09-11","sourceUpdated":"2026-09-11T17:35:21.440","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89010","references":[{"url":"https://docs.wavlink.xyz/","label":"disclosure@vulncheck.com"},{"url":"https://github.com/camdsmith/wavlink-sync_server-rce/blob/main/README.md","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/wavlink-wn535m1-wn535m3-unauthenticated-os-command-injection-via-sync-server","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-11T16:15:46.679517Z"},"ingestedAt":"2026-09-13T20:24:24.130Z","epss":0.02853,"epssPercentile":0.86044,"slug":"CVE-2026-89010","body":"## Overview\n\nWAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1_V250922 contain an unauthenticated OS command injection vulnerability that allows remote attackers to execute arbitrary commands as root by sending crafted filenames to the sync_server daemon on TCP port 13136. The daemon interpolates attacker-controlled filename input containing shell metacharacters into a shell command string via sprintf() and passes it to system() without sanitization, enabling root-level command execution on the device.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.6,"exploitation":12,"ransomware":0},"changes":[]}