RCE in Wavlink Wl-Wn530hg4b
CVE-2026-120197
A flaw has been found in WAVLINK WL-WN530HG4B M_V260724. This impacts the function port_forward of the file /cgi-bin/wapi.cgi. This manipulation of the argument Name causes os command injection. It is possible to initiate the attack 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 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/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 Wl-Wn530hg4b — versions M_V260724
Weakness classification (CWE)
References
- vuldb.com/vuln/429560 (technical-description, vdb-entry)
- vuldb.com/vuln/429560/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-120197 (third-party-advisory)
- vuldb.com/submit/917074 (third-party-advisory)
- github.com/pipiyyb/cve/blob/main/WL-WN530HG4B.md (exploit)
Frequently asked questions
- What is CVE-2026-120197?
- CVE-2026-120197 is a critical-severity vulnerability in Wavlink Wl-Wn530hg4b, classified under Command Injection. CVSS score: 9.9/10. Published 2026-11-01.
- How severe is CVE-2026-120197?
- Critical severity. CVSS v3 base score is 9.9 out of 10.