Critical (9.8) in wavlink wl-wn533a8 firmware. EPSS 1.5% chance of exploitation in the next 30 days.
A firmware update vulnerability exists in the login.cgi functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary firmware update. An attacker can send an unauthenticated message to trigger this vulnerability.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.5% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)