RCE in Wavlink Wn551x3-A
CVE-2026-120344
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.
Vulnerability class: Command Injection (OS Command Injection)
Published .
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Wavlink Wn551x3-A — versions M51X3_V251020-WO-182e965
Weakness classification (CWE)
References
- github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK_WN551X3-A Router/WAVLINK_… (exploit)
- vuldb.com/cve/CVE-2026-120344 (third-party-advisory)
- vuldb.com/submit/919551 (third-party-advisory)
- vuldb.com/vuln/429669 (technical-description, vdb-entry)
- vuldb.com/vuln/429669/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-120344?
- CVE-2026-120344 is a critical-severity vulnerability in Wavlink Wn551x3-A, classified under Command Injection. CVSS score: 10.0/10. Published 2026-11-02.
- How severe is CVE-2026-120344?
- Critical severity. CVSS v3 base score is 10.0 out of 10.