CRITICALVulnerability
Verified
Global

NVD CRITICAL: CVE-2026-89010 — WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1_V250922 cont...

·Source: NIST NVD

Updated:

Executive 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 vi

Analysis

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 Score: 9.8. Published: 2026-09-11T15:17:08.357.

Indicators of Compromise (1)

CVE (1)
CVE-2026-89010
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Sep 11, 2026. Verified by: NIST.

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