What is CVE-2026-40621?

CVE-2026-40621 is a critical-severity vulnerability in Elecom Co.,ltd. Wrc-be65qsd-b, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2026-05-13.

How severe is CVE-2026-40621?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Elecom Co.,ltd. Wrc-be65qsd-b

CVE-2026-40621

ELECOM wireless LAN access point devices do not require authentication to access some specific URLs. The affected product may be operated without authentication.

EPSS: 0.001 (25.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Elecom Co.,ltd. Wrc-be65qsd-b — versions v1.1.0 and earlier
Elecom Co.,ltd. Wrc-be72xsd-b — versions v1.1.1 and earlier
Elecom Co.,ltd. Wrc-be72xsd-ba — versions v1.1.1 and earlier
Elecom Co.,ltd. Wrc-w702-b — versions v1.1.0 and earlier

Weakness classification (CWE)

CWE-288 — Authentication Bypass Using an Alternate Path or Channel

References

Frequently asked questions

What is CVE-2026-40621?: CVE-2026-40621 is a critical-severity vulnerability in Elecom Co.,ltd. Wrc-be65qsd-b, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2026-05-13.
How severe is CVE-2026-40621?: Critical severity. CVSS v3 base score is 9.8 out of 10.