RCE in Wavlink Wn536ax6-A
CVE-2026-120277
A security vulnerability has been detected in WAVLINK WN536AX6-A V260507_2.0.0. This issue affects the function sub_41a1d8 of the file /bin/ioos of the component WireGuard CLI Group Handler. Such manipulation of the argument group_name leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed publicly 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 Wn536ax6-A — versions V260507_2.0.0
Weakness classification (CWE)
References
- vuldb.com/vuln/429621 (technical-description, vdb-entry)
- vuldb.com/vuln/429621/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-120277 (third-party-advisory)
- vuldb.com/submit/919503 (third-party-advisory)
- github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK_WN536AX6-A Router/WAVLINK… (exploit)
Frequently asked questions
- What is CVE-2026-120277?
- CVE-2026-120277 is a critical-severity vulnerability in Wavlink Wn536ax6-A, classified under Command Injection. CVSS score: 10.0/10. Published 2026-11-02.
- How severe is CVE-2026-120277?
- Critical severity. CVSS v3 base score is 10.0 out of 10.