CVE-2026-40621 Missing authorization in WRC-BE65QSD-B
Attackers can access specific URLs on ELECOM wireless access points without authentication, potentially modifying device settings.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-40621?
CVE-2026-40621 is a critical missing authorization vulnerability in ELECOM CO.,LTD. WRC-BE65QSD-B, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ELECOM wireless LAN access point devices do not require authentication to access some specific URLs. The affected product may be operated without authentication.
Weakness: CWE-288
Which versions are affected by CVE-2026-40621?
How do I fix CVE-2026-40621?
No fix has been published for CVE-2026-40621 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-40621 being exploited?
There is no known exploitation of CVE-2026-40621 in the wild and no public exploit code.
Sources
Also known as GHSA-9v2f-mjhv-cgq5.