CVE-2026-89010: critical vulnerability in WAVLINK Technology WN535M1
WAVLINK WN535M1/WN535M3 Unauthenticated OS Command Injection via sync_server
Published · Updated
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48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 3.2%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
public PoCs found — 1
cve_referencegithub.com/camdsmith/wavlink-sync_server-rce/blob/main/README.mdunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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