VulnerabilityDeferred

CVE-2026-40621

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

CRITICAL 9.3EPSS 0.49%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.49%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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

CVSS 4.0: 9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.49% probability · 41th percentile
CISA KEV: Not listed
Weakness: CWE-288
Source: vultures@jpcert.or.jp

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.