VDB-251902 · CVE-2023-46892 · GCVE-0-2023-46892

Meross MSH30Q 4.5.23 Radio Frequency Communication Protocol authentication replay

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.9	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in Meross MSH30Q 4.5.23. This affects an unknown part of the component Radio Frequency Communication Protocol. Executing a manipulation can lead to authentication replay. This vulnerability is tracked as CVE-2023-46892. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in Meross MSH30Q 4.5.23. This vulnerability affects an unknown function of the component Radio Frequency Communication Protocol. The manipulation with an unknown input leads to a authentication replay vulnerability. The CWE definition for the vulnerability is CWE-294. A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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).

The weakness was disclosed 01/23/2024. The advisory is available at kth.se. This vulnerability was named CVE-2023-46892 since 10/30/2023. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1040 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Meross

Name

MSH30Q

Version

4.5.23

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

VulDB Base Score: 5.0
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Authentication replay
CWE: CWE-294 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/30/2023 🔍
01/23/2024 +85 days 🔍
01/23/2024 +0 days 🔍
06/18/2025 +512 days 🔍

Sourcesinfo

Advisory: kth.se
Status: Not defined

CVE: CVE-2023-46892 (🔍)
GCVE (CVE): GCVE-0-2023-46892
GCVE (VulDB): GCVE-100-251902

Entryinfo

Created: 01/23/2024 21:35
Updated: 06/18/2025 04:15
Changes: 01/23/2024 21:35 (38), 02/17/2024 15:02 (11), 06/18/2025 04:15 (16)
Complete: 🔍
Cache ID: 216::103