CVE WatchSep 11, 2026

CVE-2026-89010

WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1_V250922 contain an unauthenticated OS command injection vulnerability th

CVSS

9.8

Critical

EPSS

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KEV

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Exploit Today

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0-100

Published: Sep 11, 2026 · Last modified: Sep 11, 2026 · CWE-78

EPSS · 30d

Not enough EPSS history yet.

Technical description

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.

Official references

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