CVE-2026-13538: Wavlink Wl-NU516U1-A

Medium severity, CVSS 6.3. EPSS: 2.2% chance of exploitation in the next 30 days.

A vulnerability was determined in Wavlink WL-NU516U1-A M16U1_V240425. The affected element is the function sub_401D68 of the file /cgi-bin/wireless.cgi of the component POST Parameter Handler. This manipulation of the argument SSID2G2/SSID5G2/AuthMethod2/WPAPSK12 causes command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Affected products

• Wavlink Wl-NU516U1-A: version M16U1_V240425 only

Published 2026-06-29. Last modified 2026-06-29.