CVE-2026-40621CWE-288

ELECOM wireless LAN access point devices do not require authentication to access some specific URLs

Critical · published May 13, 2026

CVSS v4.0
9.3
EPSS
1%
Percentile
53.4
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00722 · 53.4th percentile
Weakness
CWE-288 · Authentication Bypass Using an Alternate Path or Channel
Published
2026-05-13T12:01Z
EPSS history
Timeline
  • 13 MAY 12:01Z
    ELECOM wireless LAN access point devices do not require authentication to access some specific URLs
    cvelistv5