What is CVE-2026-2548?

CVE-2026-2548 is a medium-severity vulnerability in Wayos Fbm-220g, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-02-16.

How severe is CVE-2026-2548?

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

RCE in Wayos Fbm-220g

CVE-2026-2548

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.

EPSS: 0.019 (77.9th 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

Wayos Fbm-220g — versions 24.10.19

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 (related)

Frequently asked questions

What is CVE-2026-2548?: CVE-2026-2548 is a medium-severity vulnerability in Wayos Fbm-220g, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-02-16.
How severe is CVE-2026-2548?: Medium severity. CVSS v3 base score is 6.3 out of 10.