What is CVE-2025-29628?

CVE-2025-29628 is a critical-severity vulnerability in Gardyn Home Kit Firmware, classified under Improper Enforcement of Message Integrity During Transmission in a Communication Channel. CVSS score: 9.4/10. Published 2025-07-25.

How severe is CVE-2025-29628?

Critical severity. CVSS v3 base score is 9.4 out of 10.

Is CVE-2025-29628 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Gardyn Home Kit Firmware

CVE-2025-29628

A Gardyn Azure IoT Hub connection string is downloaded over an insecure HTTP connection in Gardyn Home Kit firmware before master.619, Home Kit Mobile Application before 2.11.0, and Home Kit Cloud API before 2.12.2026 leaving the string vu…

EPSS: 0.001 (25.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

Affected products

Gardyn Home Kit Firmware — versions 0

Weakness classification (CWE)

CWE-924 — Improper Enforcement of Message Integrity During Transmission in a Communication Channel

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-29628?: CVE-2025-29628 is a critical-severity vulnerability in Gardyn Home Kit Firmware, classified under Improper Enforcement of Message Integrity During Transmission in a Communication Channel. CVSS score: 9.4/10. Published 2025-07-25.
How severe is CVE-2025-29628?: Critical severity. CVSS v3 base score is 9.4 out of 10.
Is CVE-2025-29628 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.