CVE-2026-2548 MEDIUM

CVE-2026-2548: WAYOS FBM-220G rc sub_40F820 command injection

Vendor Wayos
Product FBM-220G
Weakness CWE-77
Published February 16, 2026
Last update February 23, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A flaw has been found in WAYOS FBM-220G 24.10.19. This affects the function sub_40F820 of the file rc. Executing a manipulation of the argument upnp_waniface/upnp_ssdp_interval/upnp_max_age can lead to command injection. The attack can be executed remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Key dates

02Disclosure timeline

February 16, 2026 CVE published
February 23, 2026 Record updated