CVE-2022-43704

Name: CVE-2022-43704
Creator: NVD / NIST
Published: 2023-01-20T17:15:10.823+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 1.87%

Last modified Jun 17, 2026

CVE-2022-43704 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. The Sinilink XY-WFT1 WiFi Remote Thermostat, running firmware 1.3.6, allows an attacker to bypass the intended requirement to communicate using MQTT. It is possible to replay Sinilink aka SINILINK521 protocol (udp/1024) commands interfacing directly with the target device. EPSS estimates a 1.87% chance of exploitation in the next 30 days.

Description

The Sinilink XY-WFT1 WiFi Remote Thermostat, running firmware 1.3.6, allows an attacker to bypass the intended requirement to communicate using MQTT. It is possible to replay Sinilink aka SINILINK521 protocol (udp/1024) commands interfacing directly with the target device. This, in turn, allows for an attack to control the onboard relay without requiring authentication via the mobile application. This might result in an unacceptable temperature within the target device's physical environment.

Metrics

CVSS 3.1

5.9/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

1.87%

76.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Sinilink	Xy-Wft1 Firmware	1.3.6

References

https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/cve-2022-43704-capture-replay-vulnerability-in-sinilink-xy-wft1-thermostat/Exploit, Third Party Advisory
https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/cve-2022-43704-capture-replay-vulnerability-in-sinilink-xy-wft1-thermostat/Exploit, Third Party Advisory

Timeline

Published: Jan 20, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-43704?

How severe is CVE-2022-43704?

CVE-2022-43704 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 1.87% probability of exploitation in the next 30 days.

How do I fix CVE-2022-43704?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-43704?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST