# CVE-2026-120344: WAVLINK WN551X3-A WireGuard CLI Group ioos system os command injection

- Exploited (CISA KEV): no
- Published: 2026-11-02
- CVSS: 10 CRITICAL (v4.0)
- EPSS: no score
- CWE: CWE-78, CWE-77

A vulnerability has been found in WAVLINK WN551X3-A M51X3_V251020-WO-182e965. This affects the function system of the file /bin/ioos of the component WireGuard CLI Group Handler. Such manipulation of the argument group_name leads to os command injection. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | No public claim | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | No public claim | — | — |
| F5 | No public claim | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

## Social

2 posts seen since 2026-11-02.

- x 2026-11-02: 💥 New CVE with a public exploit: CVE-2026-120344 (CVSS 10.0) WAVLINK WN551X3-A · Remote code execution Remote, no login needed.  A vulnerability has been found in WAVLINK WN551X3-A M51X3_V251020-WO-182e965.  https://t.co/z08mdrWEdd (https://x.com/EnclaveRadar/status/2117392777042432010)
- bluesky 2026-11-02: Patch watch: CVE-2026-120344 (WAVLINK WN551X3-A, CVSS 9.3). A vulnerability has been found in WAVLINK WN551X3-A M51X3_V251020-WO-182e965. No public exploit reported yet. #CVE #infosec  threatroundup.com/cve/cve-2026... (https://bsky.app/profile/threatroundup.bsky.social/post/3mzebublldp25)

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2026-120344 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2026-120344