What is CVE-2026-15513?

CVE-2026-15513 is a medium-severity vulnerability in Wavlink Wl-Nu516u1, classified under Command Injection. CVSS score: 6.3/10. Published 2026-07-13.

How severe is CVE-2026-15513?

Medium severity. CVSS v3 base score is 6.3 out of 10.

RCE in Wavlink Wl-Nu516u1

CVE-2026-15513

A security flaw has been discovered in Wavlink WL-NU516U1 260515. This affects the function wlink_uci_set_value of the file /cgi-bin/adm.cgi. Performing a manipulation of the argument lan_ip results in os command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.018 (77.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Wavlink Wl-nu516u1 — versions 260515

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)
cna@vuldb.com (patch)

Frequently asked questions

What is CVE-2026-15513?: CVE-2026-15513 is a medium-severity vulnerability in Wavlink Wl-Nu516u1, classified under Command Injection. CVSS score: 6.3/10. Published 2026-07-13.
How severe is CVE-2026-15513?: Medium severity. CVSS v3 base score is 6.3 out of 10.