CVE-2026-66404 Weak cryptography in DEEBOT PRO K1VAC
Attackers can intercept MQTT communications to retrieve operation and activity logs from DEEBOT PRO robots due to missing server certificate validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-66404?
CVE-2026-66404 is a medium-severity vulnerability in ECOVACS ROBOTICS DEEBOT PRO K1VAC, published on 10 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
DEEBOT PRO M1 and DEEBOT PRO K1VAC do not validate server certificates in MQTT communications. Operation logs and activity logs stored on the affected products may be retrieved.
Weakness: CWE-295
Which versions are affected by CVE-2026-66404?
How do I fix CVE-2026-66404?
No fix has been published for CVE-2026-66404 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-66404 being exploited?
There is no known exploitation of CVE-2026-66404 in the wild and no public exploit code.
Sources
Also known as GHSA-fpq4-v8rh-q68m.