Is CVE-2026-18588 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-18588?

CVE-2026-18588 has a CVSS v3 severity of CRITICAL (9.8).

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CVE-2026-18588

Description

A vulnerability has been found in Wavlink WL-NU516U1 708c073-mt7628. This affects the function fgets of the file nas.cgi. The manipulation of the argument CONTENT_LENGTH leads to stack-based buffer overflow. Remote exploitation of the attack is possible. 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.