Medium 6.3Published Feb 16, 2026

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

Updated under an hour ago (Oct 26, 2026, 6:30 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for WAYOS FBM-220G

Exploited in the last 30 days

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.

CVSS: 6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
Weakness (CWE): CWE-77, CWE-74
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Feb 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

WAYOS FBM-220G wayos:fbm_220g (from the name)	24.10.19	CNA record

References

References

https://vuldb.com/?id.346157	vdb-entry, technical-description
https://vuldb.com/?ctiid.346157	signature, permissions-required
https://vuldb.com/?submit.749802	third-party-advisory
https://github.com/glkfc/IoT-Vulnerability/blob/main/wayos/wayos.md	related

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.