What is CVE-2023-46892?

CVE-2023-46892 is a high-severity vulnerability in Meross Msh30q, classified under Authentication Bypass by Capture-replay. CVSS score: 8.8/10. Published 2024-01-23.

How severe is CVE-2023-46892?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Meross Msh30q

CVE-2023-46892

The radio frequency communication protocol being used by Meross MSH30Q 4.5.23 is vulnerable to replay attacks, allowing attackers to record and replay previously captured communication to execute unauthorized commands or actions (e.g., thermostat's temperature).

Published 2024-01-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (18.5th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Meross Msh30q
Meross Msh30q Firmware — versions 4.5.23

Weakness classification (CWE)

CWE-294 — Authentication Bypass by Capture-replay

References

www.kth.se/cs/nse/research/software-systems-architecture-and-security/projects/… (Third Party Advisory)

Frequently asked questions

What is CVE-2023-46892?: CVE-2023-46892 is a high-severity vulnerability in Meross Msh30q, classified under Authentication Bypass by Capture-replay. CVSS score: 8.8/10. Published 2024-01-23.
How severe is CVE-2023-46892?: High severity. CVSS v3 base score is 8.8 out of 10.