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CVE-2026-89010 is an unauthenticated OS command injection vulnerability in the root-privileged sync_server daemon of WAVLINK WN535M1 and WN535M3 routers running firmware earlier than M35M1_V250922. The daemon accepts attacker-controlled filename data over its network service, incorporates it into a shell command using sprintf(), and invokes system() without neutralizing shell metacharacters. A remote attacker can thereby inject and execute arbitrary operating-system commands with root privileges.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An unauthenticated remote OS command-injection vulnerability in the sync_server daemon of WAVLINK WN535M1 and WN535M3 routers. Crafted filenames reach a shell command through sprintf() and system() without sanitization, allowing arbitrary commands to execute as root.
An unauthenticated remote OS command-injection vulnerability in the WAVLINK sync_server daemon. Crafted filenames are interpolated into a shell command through sprintf() and executed via system(), allowing arbitrary commands as root.
A critical, pre-authentication OS command-injection vulnerability in the root-running sync_server daemon. Crafted filename input on TCP port 13136 is incorporated into a shell command without sanitization, enabling remote root command execution.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.