RCE in Wavlink Wn536ax6-A
CVE-2026-120279
A flaw has been found in WAVLINK WN536AX6-A V260507. The affected element is an unknown function of the file /protocol.csp of the component openvpn_cli Handler. Executing a manipulation of the argument file_id can lead to os command injection. The attack can be launched remotely. The exploit has been published 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
Weakness classification (CWE)
References
- vuldb.com/vuln/429623 (technical-description, vdb-entry)
- vuldb.com/vuln/429623/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-120279 (third-party-advisory)
- vuldb.com/submit/919788 (third-party-advisory)
- github.com/pipiyyb/cve/blob/main/WAVLINK WN536AX6-A/WN536AX6-A_file_id.md (exploit)
Frequently asked questions
- What is CVE-2026-120279?
- CVE-2026-120279 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-2026-120279?
- Critical severity. CVSS v3 base score is 10.0 out of 10.