CVE-2026-113802 Wavlink WL-WN530BE1-A Unauthenticated OS Command Injection in ioos protocol.csp ovpn_file Handler

Critical 9.3 Published 20 Oct 2026 Updated 21 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-113802?

CVE-2026-113802 is a critical vulnerability in Wavlink WL-WN530BE1-A, published on 20 Oct 2026.

Official description

Wavlink WL-WN530BE1-A firmware through M30BE1_V251117 contains an OS command injection vulnerability in the sub_23B54 function of the ioos binary, which passes the unsanitized file_id parameter of /protocol.csp?opt=ovpn_file requests with type=del to popen(). A remote unauthenticated attacker can send a forged IP-FROM: 127.0.0.1 header to bypass login and execute arbitrary commands as root.

Weakness: CWE-78

Which versions are affected by CVE-2026-113802?

How do I fix CVE-2026-113802?

No fix has been published for CVE-2026-113802 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-113802 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-113802 exists.

Sources

Also known as GHSA-j6fh-9747-5rv9.