RCE in Wavlink Wl-Wn530be2-A
CVE-2026-110957
A vulnerability has been found in Wavlink WL-WN530BE2-A up to M30BE2_V250604. The affected element is the function sub_12580 of the file api.cgi of the component Login Processing. The manipulation of the argument REMOTE_ADDR leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2026-09-24-841a51c6d5_tclinux.bin is sufficient to fix this issue. You should upgrade the affected component. The vendor confirms: "We confirm the finding, and it has already been addressed. In the current firmware the api=info&client=app handler no longer builds a shell command: the login script is now invoked through an argument vector (execvp) instead of system(), and the client address is length-limited and null-checked."
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
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 Wl-Wn530be2-A — versions M30BE2_V250604
Weakness classification (CWE)
References
- vuldb.com/vuln/420570 (technical-description, vdb-entry)
- vuldb.com/vuln/420570/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-110957 (third-party-advisory)
- vuldb.com/submit/920217 (third-party-advisory)
- github.com/F-yyjy/cve/blob/main/WN530BE2-A_api-cgi.md (exploit)
- dl.wavlink.com/firmware/RD/WN530BE2_WAVLINK-WO-2026-09-24-841a51c6d5_tclinux.bin (patch)
Frequently asked questions
- What is CVE-2026-110957?
- CVE-2026-110957 is a critical-severity vulnerability in Wavlink Wl-Wn530be2-A, classified under Command Injection. CVSS score: 10.0/10. Published 2026-10-15.
- How severe is CVE-2026-110957?
- Critical severity. CVSS v3 base score is 10.0 out of 10.