CVE-2026-40621

critical

Published 2026-05-13 · Modified 2026-05-13

CVSS v3

9.8

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2

—

VIR risk

9.8

Description

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

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

References

https://jvn.jp/en/jp/JVN03037325/
https://www.elecom.co.jp/news/security/20260512-01/

CWEs

CWE-288

Verify integrity in audit chain (admin only). AS-IS.