CVE-2026-89010

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 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.

Affected Software

VendorProductVersion RangeStatus
WAVLINK TechnologyWN535M1M35M1_V210223affected
WAVLINK TechnologyWN535M1M35M1_V250922unaffected
WAVLINK TechnologyWN535M3M35M1_V210223affected
WAVLINK TechnologyWN535M3M35M1_V250922unaffected

Weaknesses

  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: yes
    • Technical Impact: total

References